Crash of a BAe 146-200 near San Luis Obispo: 43 killed

Date & Time: Dec 7, 1987 at 1616 LT
Type of aircraft:
Operator:
Registration:
N350PS
Flight Phase:
Survivors:
No
Schedule:
Los Angeles – San Francisco
MSN:
E2027
YOM:
1984
Flight number:
PS1771
Crew on board:
5
Crew fatalities:
Pax on board:
38
Pax fatalities:
Other fatalities:
Total fatalities:
43
Captain / Total flying hours:
11600
Captain / Total hours on type:
1600.00
Aircraft flight hours:
8571
Circumstances:
A recently discharged USAir employee boarded PSA flight 1771 after having left a goodbye message with friends. He bypassed security and carried aboard a borrowed 44 caliber pistol. A note written by this passenger, found in the wreckage, threatened his former supervisor at USAir, who was aboard the flight. At 1613, the pilot reported to Oakland ARTCC that he had an emergency and that gunshots had been fired in the airplane. Within 25 seconds, Oakland control controllers observed that PSA 1771 had begun a rapid descent from which it did not recover. Witnesses on the ground said the airplane was intact and there was no evidence of fire before the airplane struck the ground in a steep nose-down attitude. The cover tape revealed the sounds of a scuffle and several shots which were apparently fired in or near the cockpit. The pistol was found in the wreckage with 6 expended rounds. FAA rules permitted airline employees to bypass security checkpoints. All 43 occupants were killed.
Probable cause:
Occurrence #1: loss of control - in flight
Phase of operation: cruise - normal
Findings
1. (f) security - inadequate - company/operator management
2. (f) procedure inadequate - company/operator management
3. (f) insuff standards/requirements, operation/operator - faa (organization)
4. (c) control interference - intentional - passenger
5. (c) sabotage - intentional - passenger
6. (c) emotional reaction - passenger
7. Incapacitation - pilot in command
8. Incapacitation - copilot/second pilot
9. Suicide - intentional - passenger
----------
Occurrence #2: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Final Report:

Crash of a Hawker-Siddeley HS.125-400A in Lexington: 2 killed

Date & Time: Dec 5, 1987 at 1450 LT
Type of aircraft:
Registration:
N400PH
Survivors:
Yes
Schedule:
Dallas - New York
MSN:
25180
YOM:
1968
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
20565
Aircraft flight hours:
5710
Circumstances:
While en route at FL370, the pilots declared an emergency, reported a fire in the right engine and requested vectors to the nearest suitable airport. They were vectored toward the Lexington-Blue Grass Airport and circled to descend. Shortly after declaring an emergency, the pilots reported they secured the right engine and extinguished the fire light. As the aircraft was on final approach to land, the local controller (using binoculars) confirmed that both the gear and flaps were extended. However, as the aircraft continued onto a short final approach, an increase in its pitch attitude was noted. It then dropped below the level of the runway threshold and impacted in a pasture short of the runway. After initial impact, the aircraft went thru a stone fence, hit 2 utility poles, crossed a highway, came to rest at the perimeter fence and burned. An auto was damaged by debris; 2 occupants received minor injuries. An investigation revealed the aircraft impacted with the gear extended, but the flaps and flap handle were found in the up position. An examination of the right engine revealed its outer exhaust cone was cracked in the vicinity of a fire detection loop. No other preexisting mechanical problems were evident. Both pilots were killed and both passengers were seriously injured.
Probable cause:
Occurrence #1: airframe/component/system failure/malfunction
Phase of operation: cruise - normal
Findings
1. (f) exhaust system, exhaust cone/tailpipe (jet engine) - cracked
2. (f) exhaust system, exhaust cone/tailpipe (jet engine) - leak
3. (f) engine compartment - overtemperature
----------
Occurrence #2: loss of engine power
Phase of operation: cruise
Findings
4. 1 engine
5. Emergency procedure - intentional
----------
Occurrence #3: in flight collision with terrain/water
Phase of operation: approach - vfr pattern - final approach
Findings
6. Precautionary landing - initiated
7. (c) raising of flaps - inadvertent
8. (c) stall/mush - inadvertent - pilot in command
Final Report:

Crash of a Piper PA-60 Aerostar (Ted Smith 600) in Mansfield

Date & Time: Dec 3, 1987 at 2159 LT
Registration:
N500TS
Flight Type:
Survivors:
Yes
Schedule:
Louisville – Cincinnati – Cleveland
MSN:
60-0500-162
YOM:
1978
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
6870
Captain / Total hours on type:
1170.00
Aircraft flight hours:
5176
Circumstances:
The pilot departed Louisville, KY reportedly with a known oil leak in the right engine and was on the second leg of an on-demand air taxi cargo flight. About 14 minutes after entering Mansfield approach control airspace, the pilot requested and received an altitude change from 5,000 to 3,000 ft because he 'was picking up a lot of ice.' After entering Cleveland approach airspace he reported the right engine had failed and requested to return to Mansfield. The pilot was informed of Mansfield weather. He then indicated he wanted to try Cleveland, then reported he could not maintain altitude and wanted to go to Mansfield. The pilot was receiving vectors from Mansfield for an ASR approach to runway 23 and at about 1 1/2 miles from the threshold the pilot reported he was lowering the landing gear. The aircraft then disappeared from the radar scope. Investigation revealed improper weld repairs to the right engine case and separation of the number six cylinder from the case due to fatigue cracking in the through bolts and studs.
Probable cause:
Occurrence #1: loss of engine power (total) - mech failure/malf
Phase of operation: cruise - normal
Findings
1. 1 engine - failure, total
2. Engine assembly, crankcase - cracked
3. (c) maintenance, major repair - improper - other maintenance personnel
4. (c) engine assembly, other - fatigue
5. (c) engine assembly, cylinder - separation
6. (f) operation with known deficiencies in equipment - continued - pilot in command
7. (f) company-induced pressure - pilot in command
----------
Occurrence #2: in flight collision with object
Phase of operation: approach - faf/outer marker to threshold (ifr)
Findings
8. (f) object - tree(s)
9. (f) weather condition - icing conditions
10. (f) weather condition - below approach/landing minimums
11. (f) light condition - dark night
12. (c) in-flight planning/decision - delayed - pilot in command
----------
Occurrence #3: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Final Report:

Crash of a Beechcraft C90 King Air in Beaufort: 2 killed

Date & Time: Nov 30, 1987 at 0946 LT
Type of aircraft:
Operator:
Registration:
N4463W
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Savannah - Philadelphia
MSN:
LJ-633
YOM:
1974
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
14000
Aircraft flight hours:
2092
Circumstances:
At 0938, while climbing thru 9,000 feet, the pilot was cleared to climb to FL210. Approximately 10 minutes later, the ATC controller noted the aircraft's mode C return wasn't being displayed on his scope. He tried to advise the pilot, but couldn't establish radio contact. The aircraft broke up in flight and the wreckage was found submerged in a creek and on marshland. A large piece of the right outboard wing panel was found about 2 miles east of the main wreckage. The right engine was found approximately 800 feet to 1,200 feet northeast of the main wreckage in 4 feet of water. There was evidence the right outboard wing had failed from upward and aft overload. No pre-accident mechanical failure or malfunction was found that would have resulted in an in-flight break-up. Radar data showed the aircraft was climbing at 115 knots and 1,100 feet/minute; at approximately 16,000 feet msl, rate of climb slowed to approximately 750 feet/minute, then increased to 1,200 feet/minute. Peak altitude was approximately 18,200 feet. Aircraft then entered a steep descent and crashed. At the approximately time and place of peak altitude, primary targets appeared on radar and remained for several minutes. Organic material was found on left engine inlet screen, but source was not determined. Accident occurred along bird flyway. Both occupants were killed.
Probable cause:
Occurrence #1: airframe/component/system failure/malfunction
Phase of operation: climb
Findings
1. (c) reason for occurrence undetermined
2. Design stress limits of aircraft - exceeded
3. Wing - overload
4. Wing - separation
----------
Occurrence #2: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Findings
5. Terrain condition - water
Final Report:

Crash of a Piper PA-46-310P Malibu in Long Beach: 1 killed

Date & Time: Nov 29, 1987 at 1843 LT
Operator:
Registration:
N4369V
Flight Type:
Survivors:
Yes
Schedule:
Carslbad - Long Beach
MSN:
46-8408076
YOM:
1984
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Captain / Total flying hours:
4782
Captain / Total hours on type:
237.00
Circumstances:
During the return flight to San Jose and subsequent descent and approach to the Long Beach Airport, the two pilots experienced, in succession, a failure of the turbocharger system, loss of an alternator, loss of engine oil pressure, an unsafe landing gear indication, and an in-flight fire followed by the loss of engine power during a night time circling approach to an unfamiliar airport in visual meteorological conditions. The aircraft crashed onto the southbound lanes of the San Diego freeway at Long Beach after making a flyby of the tower to confirm the landing gear position. The investigation revealed an improperly installed turbocharger, a cracked manifold exhaust, a burned main power lead, a separated cylinder, and a low fluid level in the hydraulic reservoir. Two years prior to this accident, the instructor pilot made an unintentional gear up landing in another aircraft. One year prior to this accident the FAA revoked the mechanic's inspection authorization.
Probable cause:
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
Pilot's failure to land the aircraft after experiencing the pilot's Faulty decision was his previous experience with a gear up landing a Couple of years before.
Findings
Occurrence #1: airframe/component/system failure/malfunction
Phase of operation: cruise - normal
Findings
1. Exhaust system, turbocharger - failure, partial
2. (f) exhaust system, turbocharger - disengaged
3. (f) engine installation, mounting bolt - separation
4. (c) maintenance, installation - improper - company maintenance personnel
5. (f) maintenance, inspection - poor - company maintenance personnel
----------
Occurrence #2: airframe/component/system failure/malfunction
Phase of operation: descent - emergency
Findings
6. (f) electrical system, electric wiring - burned
7. Electrical system, alternator - disabled
8. (c) hydraulic system, accumulator - low level
9. Landing gear, gear indicating system - false indication
10. (c) low pass - intentional - pilot in command (cfi)
11. (f) anxiety/apprehension - pilot in command (cfi)
----------
Occurrence #3: fire
Phase of operation: go-around (vfr)
Findings
12. (c) engine assembly, cylinder - fatigue
13. Engine assembly, cylinder - separation
14. Go-around - performed - pilot in command (cfi)
15. (f) judgment - poor - pilot in command (cfi)
----------
Occurrence #4: loss of engine power (total) - mech failure/malf
Phase of operation: approach - vfr pattern - base leg/base to final
Findings
16. (f) fluid, oil - starvation
----------
Occurrence #5: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Findings
17. Light condition - night
18. (c) stall/mush - encountered - pilot in command (cfi)
Final Report:

Crash of a Beechcraft 1900C in Homer: 18 killed

Date & Time: Nov 23, 1987 at 1825 LT
Type of aircraft:
Operator:
Registration:
N401RA
Survivors:
Yes
Schedule:
Kodiak - Homer - Kenai - Anchorage
MSN:
UB-058
YOM:
1986
Flight number:
XY103
Location:
Crew on board:
2
Crew fatalities:
Pax on board:
19
Pax fatalities:
Other fatalities:
Total fatalities:
18
Captain / Total flying hours:
7087
Captain / Total hours on type:
4420.00
Copilot / Total flying hours:
10532
Copilot / Total hours on type:
300
Circumstances:
During arrival, the aircraft (Ryan flight 103) crashed short of runway 03. The fuselage stayed intact during impact, but the belly structure was compressed and vertical deceleration forces exceeded the design capability of the seats. Rescue personnel had difficulty shutting off the aircraft's electrical power which delayed removal of the 1st officer (f/o) from the aircraft. An investigation revealed the aircraft was loaded with approximately 600 lbs more cargo than the f/o had requested. The center-of-gravity (cg) was 8 to 11 inches behind the allowable aft limit and the flight crew did not comply with company and FAA procedures in computing the cg. During flight, up to 3/8 inches of ice accumulated on the aircraft's leading edges. There was evidence the crew lost control of the aircraft as the flaps were lowered. The right flap actuator was found in the 7 to 12° position and the stabilizer trim was found at the full nose down position. Flight tests showed there would be no significant difficulty in controlling the aircraft with up to 1.5 inch of ice on the leading edges and that static stability would deteriorate during flap extension with the aft cg configuration. Three passengers survived while 18 other occupants were killed.
Probable cause:
The failure of the flight crew to properly supervise the loading of the airplane which resulted in the centre of gravity being displaced to such an aft location that the airplane control was lost when the flaps were lowered for landing.
Final Report:

Crash of a Piper PA-31-350 Navajo Chieftain in Honolulu

Date & Time: Nov 20, 1987 at 1124 LT
Operator:
Registration:
N27512
Survivors:
Yes
Schedule:
Kona - Honolulu
MSN:
31-7852035
YOM:
1978
Flight number:
PV084
Location:
Crew on board:
1
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
4190
Captain / Total hours on type:
1685.00
Aircraft flight hours:
6315
Circumstances:
The pilot estimated that the aircraft's reduced fuel quantity was adequate for the flight during his preflight inspection. As the aircraft descended for the traffic pattern near the destination airport both engines failed. After the loss of power the pilot executed a forced landing into a park with the landing gear not fully extended. The aircraft impacted the terrain and slid into a fence before coming to a stop.
Probable cause:
Occurrence #1: loss of engine power (total) - nonmechanical
Phase of operation: descent - normal
Findings
1. (c) fluid, fuel - exhaustion
2. (c) fuel consumption calculations - inaccurate - pilot in command
3. (f) preflight planning/preparation - inadequate - pilot in command
----------
Occurrence #2: forced landing
Phase of operation: descent - emergency
----------
Occurrence #3: on ground/water collision with object
Phase of operation: landing
Findings
4. (f) object - fence
5. Gear extension - not attained - pilot in command
Final Report:

Crash of a Volpar Turboliner 18 in Saint Clair Shores

Date & Time: Nov 19, 1987 at 1725 LT
Type of aircraft:
Operator:
Registration:
N10AS
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Newark - Detroit
MSN:
N-467
YOM:
1950
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
3080
Captain / Total hours on type:
80.00
Aircraft flight hours:
15800
Circumstances:
While enroute to home base after delivery of revenue cargo, the pilot experienced a total loss of engine power in both engines due to fuel exhaustion. The pilot performed emergency procedures and set the aircraft up for a forced landing in a grassy field on the edge of a lake. The aircraft initially impacted a tree and the rocky berm of the shoreline. The contact with the berm caused the landing gear to break off, the aircraft swerved around and skidded backwards before coming to a rest about 150 feet from the lakeshore. Post accident investigation revealed less than 2 gallons of fuel in each wing tank.
Probable cause:
Occurrence #1: loss of engine power (total) - nonmechanical
Phase of operation: descent
Findings
1. (c) fluid, fuel - exhaustion
2. Engine instruments, fuel quantity gage - incorrect
3. Inattentive - pilot in command
4. (c) planning/decision - poor - pilot in command
----------
Occurrence #2: forced landing
Phase of operation: descent - emergency
----------
Occurrence #3: in flight collision with terrain/water
Phase of operation: descent - emergency
Findings
5. Object - tree(s)
6. Terrain condition - berm
7. Terrain condition - rough/uneven
8. Landing gear - collapsed
Final Report:

Crash of a Beechcraft 200 Super King Air in Jefferson: 8 killed

Date & Time: Nov 16, 1987 at 0819 LT
Registration:
N334DP
Flight Phase:
Survivors:
No
Schedule:
Chicago - Baraboo
MSN:
BB-1188
YOM:
1984
Crew on board:
2
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
8
Captain / Total flying hours:
18000
Captain / Total hours on type:
3000.00
Aircraft flight hours:
1050
Circumstances:
While cruising above freezing level at 12,000 feet, the flight was cleared to descend and maintain 9,000 feet. About 1-1/2 minute later, the flight declared a mayday (emergency). Radio and radar contacts were lost and the aircraft crashed in a near vertical descent. Radar data showed that after starting a descent, the aircraft entered a left/descending maneuver. Subsequently, the left outboard wing panel and both engines separated in flight. The last transponder reply was at 2,800 feet. An exam revealed the left wing panel had separated from positive overload. No fatigue or pre-existing crack was found on any fracture area. Also, damage was found on the left engine's inboard cowling that matched damage on the vertical and right horizontal stabilizers; however, sequence of cowling separation was not verified. The separated wing panel and parts of the engine cowling were found about 3/4 mile from the main wreckage. An NTSB trajectory study indicated an inflight separation occurred at an altitude of approximately 5,600 feet as aircraft was heading southeast in a 50 to 70° dive. Elevation trim indicator was found with a full nose up indication. Both pilots were instrument rated. All eight occupants were killed.
Probable cause:
Occurrence #1: loss of control - in flight
Phase of operation: descent
Findings
1. (c) reason for occurrence undetermined
----------
Occurrence #2: airframe/component/system failure/malfunction
Phase of operation: descent - uncontrolled
Findings
2. Wing - overload
3. (c) design stress limits of aircraft - exceeded
4. Wing - separation
5. Cooling system, cowling - separation
----------
Occurrence #3: in flight collision with terrain/water
Phase of operation: descent - uncontrolled
Final Report:

Crash of a Douglas DC-9-14 in Denver: 28 killed

Date & Time: Nov 15, 1987 at 1415 LT
Type of aircraft:
Operator:
Registration:
N626TX
Flight Phase:
Survivors:
No
Schedule:
Denver - Boisé
MSN:
45726
YOM:
1966
Flight number:
CO1713
Crew on board:
5
Crew fatalities:
Pax on board:
77
Pax fatalities:
Other fatalities:
Total fatalities:
28
Captain / Total flying hours:
12125
Captain / Total hours on type:
133.00
Copilot / Total flying hours:
3186
Copilot / Total hours on type:
36
Aircraft flight hours:
42184
Aircraft flight cycles:
54759
Circumstances:
Weather conditions were moderate snow and freezing temperatures. Following a 27 minute delay between deicing and departure, on takeoff the aircraft was over-rotated by the first officer. Aircraft control was lost, the aircraft stalled and impacted off the right side of the runway. Company procedures called for repeat deicing when in icing conditions if a delay exceeds 20 minutes. Confusion between the tower and the flight crew due to procedural errors resulted in the delayed takeoff clearance. Both pilots were inexperienced in their respective crew positions. The captain had 33 hours experience as a DC-9 captain. The first officer had 36 hours jet experience, all in the DC-9. First officer demonstrated weak scan in training and had pilot performance problems with previous employers. First officer was on reserve, and had not flown for 24 days. The trip was assigned to the first officer for proficiency. Flight was first officer's 2nd trip as DC-9 first officer. Wing vortices from a landing aircraft on a parallel runway were not a factor in the accident.
Probable cause:
The captain's failure to have the airplane de-iced a second time after delay before take-off that led to upper wing surface contamination and a loss of control during rapid take-off rotation by the first officer.
Contributing was the absence of regulatory or management controls governing operations by newly qualified flight crew members and the confusion that existed between the flight crew and air traffic controllers that led to the delay in departure.
Final Report: