# NTSB investigations: Airframe/component/system failure/malfunction

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

Page 29 of 79 · 3,929 cases

## Cases, newest first

- [NTSB ATL97LA048](https://openairdocs.org/ntsb/ATL97LA048.md): Bill Parson Parson 2+2 · Bunnell, FL · Accident · 2 fatal · Limited investigation · Final report · Mar 11, 1997 · N254WP · Destroyed
  > The owner/pilot mechanic's improper bending of the front flight control stick that resulted in an fatigue failure, and the subsequent loss of flight control.
- [NTSB FTW97IA119](https://openairdocs.org/ntsb/FTW97IA119.md): Boeing 727-2K5 · Dfw Airport, TX · Incident · No injuries · Incident investigation · Final report · Mar 10, 1997 · N909PG · Minor damage
  > failure of the outer bearing for undetermined reason(s).
- [NTSB ANC97LA033](https://openairdocs.org/ntsb/ANC97LA033.md): Cessna 337T · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Mar 9, 1997 · N922EJ · Substantial damage
  > a leaking landing gear actuator seal, which resulted in an inability of the landing gear to lock in the down position. Failure of the emergency gear extension handle was a related factor.
- [NTSB NYC97LA058](https://openairdocs.org/ntsb/NYC97LA058.md): Aerospatiale AS-355F · Washington, PA · Accident · Minor injuries · Limited investigation · Final report · Mar 5, 1997 · N101UC · Substantial damage
  > The malfunction of a cyclic servo which resulted in a cyclic hard over at a hover.
- [NTSB DCA97IA030](https://openairdocs.org/ntsb/DCA97IA030.md): Boeing 727F · Atlanta, GA · Incident · No injuries · Incident investigation · Final report · Mar 3, 1997 · N465FE · Minor damage
  > A jammed elevator resulting from a backed-off elevator trim tab nut.
- [NTSB FTW97LA111](https://openairdocs.org/ntsb/FTW97LA111.md): Cessna TR182 · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Mar 1, 1997 · N2396S · Substantial damage
  > Improper repair to the nose landing gear assembly. A factor was binding of the nose gear extension assembly due to the improper repair.
- [NTSB CHI97IA074](https://openairdocs.org/ntsb/CHI97IA074.md): de Havilland DHC-8-311 · Rapid City, SD · Incident · No injuries · Incident investigation · Final report · Feb 24, 1997 · N430AW · No damage
  > a missing 'C' clip, which resulted in the master link coming apart, allowing the electric elevator trim chain and cable to become entangled in the elevator trim cables.
- [NTSB LAX97FA107](https://openairdocs.org/ntsb/LAX97FA107.md): Hughes 369D · Milolii, HI · Accident · Serious injuries · Field investigation · Final report · Feb 21, 1997 · N505RM · Substantial damage
  > failure of the tail rotor for undetermined reason(s), resulting in tail rotor imbalance, separation of the tail rotor, and an autorotative landing on rough terrain with high vegetation. The lack of suitable terrain for a forced landing was a related factor.
- [NTSB CHI97IA073](https://openairdocs.org/ntsb/CHI97IA073.md): de Havilland DHC-8-102 · Romulus, MI · Incident · No injuries · Incident investigation · Final report · Feb 20, 1997 · N828MA · No damage
  > a fractured fusion weld in the piston of the roll spoiler servoactuator, which allowed the plug at the base of the piston to separate and jam the piston. A factor relating to the incident was: the inadequate design of the airplane's roll spoiler servoactuator…
- [NTSB CHI97IA072](https://openairdocs.org/ntsb/CHI97IA072.md): McDonnell Douglas DC-9-15 · Des Moines, IA · Incident · No injuries · Incident investigation · Final report · Feb 20, 1997 · N93S · Minor damage
  > the cross tie relay shorted resulting in a fire in the left main electrical equipment rack.
- [NTSB IAD97IA048](https://openairdocs.org/ntsb/IAD97IA048.md): McDonnell Douglas MD-82 · Newark, NJ · Incident · No injuries · Incident investigation · Final report · Feb 17, 1997 · N34838 · Minor damage
  > fatigue fracture of the upper lock link, which led to the collapse of the nose gear during landing.
- [NTSB LAX97LA101](https://openairdocs.org/ntsb/LAX97LA101.md): Cessna 210H · Big Bear City, CA · Accident · No injuries · Limited investigation · Final report · Feb 8, 1997 · N6137F · Substantial damage
  > a corroded landing gear down limit switch, which resulted in a retracted left main gear during the landing sequence.
- [NTSB SEA97LA058](https://openairdocs.org/ntsb/SEA97LA058.md): Cessna 421C · Cedar City, UT · Accident · No injuries · Limited investigation · Final report · Feb 6, 1997 · N45MV · Substantial damage
  > water contamination in the hydraulic system, which froze in the (right) main gear hydraulic actuator, and restricted movement of the (right) main gear retraction and extension system.
- [NTSB CHI97IA075](https://openairdocs.org/ntsb/CHI97IA075.md): de Havilland DHC-8-102 · Charleston, WV · Incident · No injuries · Incident investigation · Final report · Jan 22, 1997 · N852MA · No damage
  > a fractured fusion weld in the piston of the roll spoiler servoactuator, which allowed the plug at the base of the piston to separate and jam the piston. A factor relating to the incident was: the inadequate design of the airplane's roll spoiler servoactuator…
- [NTSB SEA97IA051](https://openairdocs.org/ntsb/SEA97IA051.md): Beech 1900D · Seattle, WA · Incident · No injuries · Incident investigation · Final report · Jan 21, 1997 · N75ZV · Minor damage
  > an axial shift of the aft flap track bearing's outer roller, resulting in erosion and failure of the flap track bracket/bearing assembly. A factor relating to the incident was: inadequate inspection of the flap roller bearing/bracket assemblies.
- [NTSB CHI97FA056](https://openairdocs.org/ntsb/CHI97FA056.md): Cessna 210N · Highland, MI · Accident · 2 fatal · Field investigation · Final report · Jan 21, 1997 · N29WW · Destroyed
  > in-flight breakup of the airplane for undetermined reason(s).
- [NTSB SEA97FA049](https://openairdocs.org/ntsb/SEA97FA049.md): Champion 7-GCBC · Creswell, OR · Accident · 2 fatal · Field investigation · Final report · Jan 19, 1997 · N9677S · Destroyed
  > the pilot exceeded the design stress limits of the aircraft, while recovering from a spin, which resulted in failure and separation of the right wing tip and adjacent wing fabric (skin).
- [NTSB MIA97LA067](https://openairdocs.org/ntsb/MIA97LA067.md): Grumman American AA-5B · Salisbury, NC · Accident · No injuries · Limited investigation · Final report · Jan 19, 1997 · N81307 · Destroyed
  > continued operation of the aircraft by the flight instructor (CFI) and student after identifying a brake problem, which resulted in a fire that erupted from the brake system and subsequently destroyed the aircraft.
- [NTSB IAD97LA044](https://openairdocs.org/ntsb/IAD97LA044.md): Aerospatiale TB-20 · University Park, PA · Accident · No injuries · Limited investigation · Final report · Jan 18, 1997 · N2803A · Substantial damage
  > the pilot's inability to control the airplane due to a damaged/bent elevator control lever and resultant lack of elevator authority.
- [NTSB FTW97LA083](https://openairdocs.org/ntsb/FTW97LA083.md): Bellanca 8KCAB · Laporte, TX · Accident · Minor injuries · Limited investigation · Final report · Jan 15, 1997 · N5062P · Substantial damage
  > The pilot's diminished ability to maintain control of the airplane due to a jammed elevator control as result of inadequate maintenance procedures by the operator's mechanic.
- [NTSB NYC97FA045](https://openairdocs.org/ntsb/NYC97FA045.md): Beech 1900D · Bangor, ME · Accident · Minor injuries · Field investigation · Final report · Jan 10, 1997 · N139ZV · Substantial damage
  > The inadequate flight and winter operations training provided by the operator, and the pilot's improper decision to abort the takeoff while airborne above V1, due to a false stall warning horn. Also casual was the airport operations improper decision to…
- [NTSB MIA97LA056](https://openairdocs.org/ntsb/MIA97LA056.md): Cessna 441 · Lakeland, FL · Accident · Minor injuries · Limited investigation · Final report · Jan 2, 1997 · N441MS · Destroyed
  > Failure of the electronic engine control, which caused an overtorque condition in the right engine that made directional control of the airplane not possible by the pilot when the power to the left engine was retarded to idle during the takeoff roll.
- [NTSB ATL97LA031](https://openairdocs.org/ntsb/ATL97LA031.md): Cessna 310Q · Selma, AL · Accident · No injuries · Limited investigation · Final report · Dec 30, 1996 · N7561Q · Substantial damage
  > The failure of maintenance personnel to correctly repair and install the pilot's seat.
- [NTSB LAX97FA069](https://openairdocs.org/ntsb/LAX97FA069.md): de Havilland DHC-8 · Honolulu, HI · Accident · No injuries · Field investigation · Final report · Dec 16, 1996 · N801WP · Substantial damage
  > A failure of the normal landing gear extension system due to a hydraulic leak, and the failure of the airplane's emergency landing gear extension system due to inadequate servicing by company maintenance personnel. Factors were the emergency landing gear…
- [NTSB MIA97LA038](https://openairdocs.org/ntsb/MIA97LA038.md): Bell 47G · Lantana, FL · Accident · Minor injuries · Limited investigation · Final report · Dec 15, 1996 · N1200Z · Destroyed
  > an undetermined throttle problem, which resulted in a stuck (binding) throttle; and inadequate remedial action by the pilot, which led to a hard landing and subsequent nose over.
- [NTSB MIA97LA036](https://openairdocs.org/ntsb/MIA97LA036.md): Beech 18G · Roosevelt Roads, PR · Accident · 1 fatal · Limited investigation · Final report · Dec 11, 1996 · N353T · Destroyed
  > The pilot's improper planning/decision concerning separation of the left engine cowling. Factors relating to the accident were: the pilot's failure to perform weight and balance calculations, and/or to ensure the airplane was loaded in accordance with company…
- [NTSB CHI97IA041](https://openairdocs.org/ntsb/CHI97IA041.md): Boeing 757-225 · Terre Haute, IN · Incident · No injuries · Incident investigation · Final report · Dec 11, 1996 · N603AU · Minor damage
  > inadequate installation of electrical wiring for an audio entertainment system associated with Supplemental Type Certificate (STC) SA5537NM, and a subsequent short in the wiring. Factors relating to the accident were: inadequate design (installation…
- [NTSB IAD97LA028](https://openairdocs.org/ntsb/IAD97LA028.md): Hughes 269C · Mayfield, KY · Accident · No injuries · Limited investigation · Final report · Dec 4, 1996 · N1105P · Substantial damage
  > disengagement of the main transmission aft pinion nut, allowing the tail rotor splined drive sleeve to disengage from the pinion, which resulted in loss of directional control and an emergency (autorotative) landing.
- [NTSB FTW97FA051](https://openairdocs.org/ntsb/FTW97FA051.md): Eurocopter AS350B2 · High Island A20 · Accident · 3 fatal · Field investigation · Final report · Nov 28, 1996 · N6100U · Destroyed
  > This case was modified 6/26/2006. The failure of the tail rotor pitch change link due to a fatigue fracture, which resulted in a loss of tail rotor control and separation of the aft tailboom.
- [NTSB ATL97LA027](https://openairdocs.org/ntsb/ATL97LA027.md): Beech 35 · Lafayette, GA · Accident · No injuries · Limited investigation · Final report · Nov 27, 1996 · N4523V · Substantial damage
  > failure of maintenance personnel to balance the ruddervator assemblies after they had been reskinned and painted, which resulted in flutter and subsequent damage to the empennage.
- [NTSB CHI97IA034](https://openairdocs.org/ntsb/CHI97IA034.md): Airbus Industrie A-320-211 · Romulus, MI · Incident · No injuries · Incident investigation · Final report · Nov 24, 1996 · N310NW · No damage
  > restricted movement of the autopilot mode engagement/disengagement lever bearing in the rudder artificial feel and trim unit. A factor relating to this incident was: company management not implementing the respective service bulletin.
- [NTSB NYC97LA020](https://openairdocs.org/ntsb/NYC97LA020.md): Zukowski EAA Biplane · Williamsport, PA · Accident · No injuries · Limited investigation · Final report · Nov 23, 1996 · N818Z · Substantial damage
  > the pilot's inadequate preflight preparation, which resulted in opening of the unsecured canopy during the takeoff roll, and subsequent loss of directional control and a nose over. A factor was: the pilot's failure to use a checklist.
- [NTSB CHI97FA030](https://openairdocs.org/ntsb/CHI97FA030.md): Boeing 737-222 · Grand Rapids, MI · Accident · Serious injuries · Field investigation · Final report · Nov 19, 1996 · N9038U · No damage
  > a passenger sustained a fractured ankle during an emergency evacuation for undetermined reasons.
- [NTSB CHI97IA029](https://openairdocs.org/ntsb/CHI97IA029.md): Beech 1900D · Hopkensville, KY · Incident · No injuries · Incident investigation · Final report · Nov 17, 1996 · N841SK · Minor damage
  > the materials used in the new windshield, to meet new EPA requirements, were inadequate for the design.
- [NTSB IAD97IA018](https://openairdocs.org/ntsb/IAD97IA018.md): McDonnell Douglas MD-11 · Dayton, OH · Incident · No injuries · Incident investigation · Final report · Nov 8, 1996 · N814DE · No damage
  > Failure of the output drive unit shear pin due to lack of lubrication to the screw actuator assemblies. Contributing to the cause was the aircraft manufacturer's production and inspection personnel failing to lubricate the screw assemblies after initial…
- [NTSB NYC97FA013](https://openairdocs.org/ntsb/NYC97FA013.md): Piper PA-34-200T · Lehman Township, PA · Accident · 2 fatal · Field investigation · Final report · Nov 6, 1996 · N5671V · Destroyed
  > The failure of the forward fuselage nose assembly for an undetermined reason, which resulted in an in-flight breakup of the airplane.
- [NTSB SEA97LA025](https://openairdocs.org/ntsb/SEA97LA025.md): Garlick TH-1L · Leavenworth, WA · Accident · 1 fatal · Limited investigation · Final report · Nov 5, 1996 · N465JR · Destroyed
  > Fatigue failure of the vertical stabilizer spar cap and subsequent loss of the rotorcraft's vertical stabilizer. Factors include inadequate inspection or trouble-shooting of the aircraft tail cone and vertical stabilizer at and after the time sheet-metal…
- [NTSB FTW97FA033](https://openairdocs.org/ntsb/FTW97FA033.md): Schweizer SGS 1-36 · Boulder, CO · Accident · 1 fatal · Field investigation · Final report · Nov 2, 1996 · N3616Z · Destroyed
  > The pilot exceeding the design stress limits of the aircraft by performing an aerobatic maneuver, resulting in total failure of the wing spar.
- [NTSB IAD97LA013](https://openairdocs.org/ntsb/IAD97LA013.md): Cessna 140 · Wakefield, VA · Accident · No injuries · Limited investigation · Final report · Oct 26, 1996 · N83N · Substantial damage
  > uncommanded operation of the parking brake, due to a missing tension spring, which resulted in locked brakes and subsequent nose over of the airplane during landing.
- [NTSB LAX97LA019](https://openairdocs.org/ntsb/LAX97LA019.md): Aero Commander 690 · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Oct 15, 1996 · N15VZ · Substantial damage
  > failure of the main landing gear to fully engage in the down-and-locked position for undetermined reason(s). Loss of hydraulic pressure to the main gear for undetermined reasons(s) was a related factor.
- [NTSB ATL97LA006](https://openairdocs.org/ntsb/ATL97LA006.md): Cessna 337G · Fayetteville, NC · Accident · No injuries · Limited investigation · Final report · Oct 13, 1996 · N20EC · Substantial damage
  > The unapproved maintenance modification of the landing gear electrical system by maintenance personnel that prevented the extension of the landing gear.
- [NTSB LAX97LA005](https://openairdocs.org/ntsb/LAX97LA005.md): North American F-86 · Salinas, CA · Accident · No injuries · Limited investigation · Final report · Oct 6, 1996 · N186SE · Substantial damage
  > an internal failure of a hydraulic pump, which resulted in contamination in the hydraulic system and subsequent loss of the braking system. Factors related to the accident included the proximity of a fence and rough/uneven terrain adjacent to the runway.
- [NTSB FTW97LA007](https://openairdocs.org/ntsb/FTW97LA007.md): Hispano Aviacion HA-200 Saeta · Elk City, OK · Accident · No injuries · Limited investigation · Final report · Oct 5, 1996 · N3179K · Substantial damage
  > The loss of aircraft control due to a fuel imbalance as a result of a partial failure of the fuel jettison system. A factor was that fuel could not be transferred from the left wing tip fuel tank to the rear fuselage fuel tank.
- [NTSB SEA97FA001](https://openairdocs.org/ntsb/SEA97FA001.md): Boeing Vertol BV-107 II · Canby, OR · Accident · 3 fatal · Field investigation · Final report · Oct 4, 1996 · N196CH · Destroyed
  > failure of maintenance personnel to install a cotter pin in a clevis bolt in the flight control system, which resulted in the aft directional and lateral control output pushrod to become disconnected from a bellcrank in the forward portion of the first stage…
- [NTSB CHI96FA353](https://openairdocs.org/ntsb/CHI96FA353.md): Cessna 195 · Greenville, MO · Accident · 4 fatal · Field investigation · Final report · Sep 26, 1996 · N195WR · Destroyed
  > the pilot's decision to fly into known adverse weather which resulted in an overload failure and separation of the left wing.
- [NTSB IAD96LA153](https://openairdocs.org/ntsb/IAD96LA153.md): Cessna 188 · Pataskala, OH · Accident · No injuries · Limited investigation · Final report · Sep 25, 1996 · N3619J · Substantial damage
  > deterioration and fuel leakage from an engine fuel hose (with a service life that had been exceed, due to inadequate maintenance), which resulted in an engine compartment fire and subsequent damage to the airplane.
- [NTSB SEA96LA219](https://openairdocs.org/ntsb/SEA96LA219.md): Kaman HH-43 B/F · Troy, MT · Accident · Minor injuries · Limited investigation · Final report · Sep 23, 1996 · N4069R · Substantial damage
  > failure of the freewheeling sprag unit bearings for undetermined reasons.
- [NTSB ATL96LA131](https://openairdocs.org/ntsb/ATL96LA131.md): Beech A23 · Tarboro, NC · Accident · No injuries · Limited investigation · Final report · Sep 20, 1996 · N8879M · Substantial damage
  > fatigue failure of the propeller blade. Factors relating to the accident were: corrosion pit(s) on the propeller blade, and inadequate maintenance/inspection of the propeller.
- [NTSB ATL96LA129](https://openairdocs.org/ntsb/ATL96LA129.md): Bell 47G-4A (Soloy) · Belmont, MS · Accident · Minor injuries · Limited investigation · Final report · Sep 19, 1996 · N23PH · Substantial damage
  > failure of the aft universal joint of the tail rotor drive shaft, due to inadequate lubrication by company maintenance personnel. A factor relating to the accident was the pilot's delay in discontinuing the flight after noting a progressively worse tail rotor…
- [NTSB CHI96FA334](https://openairdocs.org/ntsb/CHI96FA334.md): Thocker RV-4 · Muncie, IN · Accident · 2 fatal · Field investigation · Final report · Sep 17, 1996 · N952JT · Destroyed
  > was the in-flight disconnection of the horizontal and vertical stabilizer forward attachments.

Next page: https://openairdocs.org/ntsb.md?occurrence=130&page=30

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=130&page=29

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