# 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 26 of 79 · 3,929 cases

## Cases, newest first

- [NTSB SEA98FA055](https://openairdocs.org/ntsb/SEA98FA055.md): Enstrom F28F · Baker, OR · Accident · No injuries · Field investigation · Final report · Mar 30, 1998 · N171HH · Substantial damage
  > Fatigue failure of the steel tubing pylon structure. Factors include inadequate inspection by maintenance personnel of damage after a previous accident.
- [NTSB MIA98FA110](https://openairdocs.org/ntsb/MIA98FA110.md): Cessna 150H · West Palm Beach, FL · Accident · Serious injuries · Field investigation · Final report · Mar 29, 1998 · N22358 · Substantial damage
  > The poor in-flight planning by the pilot-in-command for his failure to ask for assistance after becoming lost momentarily, and his failure to monitor the total time airborne after the fuel tanks were filled. Contributing to the accident was the binding of the…
- [NTSB FTW98LA160](https://openairdocs.org/ntsb/FTW98LA160.md): Aero Commander 100 · Fort Worth, TX · Accident · Minor injuries · Limited investigation · Final report · Mar 26, 1998 · N5530M · Substantial damage
  > The separation of the aileron control rod due to bending overstress. A factor was the unsuitable terrain available for the precautionary landing.
- [NTSB FTW98IA158](https://openairdocs.org/ntsb/FTW98IA158.md): McDonnell Douglas DC-10-10 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Mar 25, 1998 · N1836U · Minor damage
  > The total failure of one main landing gear tire.
- [NTSB FTW98LA148](https://openairdocs.org/ntsb/FTW98LA148.md): Beech 58 · Taos, NM · Accident · No injuries · Limited investigation · Final report · Mar 13, 1998 · N9239Q · Substantial damage
  > The total failure of the landing gear retraction/extension assembly for reasons undetermined.
- [NTSB NYC98LA076](https://openairdocs.org/ntsb/NYC98LA076.md): Enstrom F-28A · Blue Ash, OH · Accident · No injuries · Limited investigation · Final report · Mar 12, 1998 · N4884 · Substantial damage
  > The failure of a cooling fan blade and the pilot's improper flare.
- [NTSB FTW98LA144](https://openairdocs.org/ntsb/FTW98LA144.md): Bell 47D1 · Jeanerette, LA · Accident · Minor injuries · Limited investigation · Final report · Mar 11, 1998 · N13012 · Substantial damage
  > The in-flight disconnect of the rotating scissors due to the separation of its hinge bolt.
- [NTSB ANC98IA026](https://openairdocs.org/ntsb/ANC98IA026.md): Boeing 737-205 · Anchorage, AK · Incident · No injuries · Incident investigation · Final report · Mar 11, 1998 · N733AR · No damage
  > The dynamic imbalance in the yaw rate gyro, which provided input to the yaw damper and rudder. A factor was the deteriorated grease in the gyro bearings.
- [NTSB MIA98IA100](https://openairdocs.org/ntsb/MIA98IA100.md): Aerospatiale ATR-42-300 · Fort Myers, FL · Incident · No injuries · Incident investigation · Final report · Mar 10, 1998 · N275BC · No damage
  > The failure of the No. 1 generator field excitation return wire terminal lug due to improper installation of the field excitation return wire by maintenance personnel; the subsequent failure of the No. 2 generator due to overvoltage, caused by the momentary…
- [NTSB FTW98FA145](https://openairdocs.org/ntsb/FTW98FA145.md): Duci'S Vans RV-3 · Elbert, CO · Accident · 1 fatal · Field investigation · Final report · Mar 8, 1998 · N99HV · Destroyed
  > in-flight failure of the right wing spar (for an undetermined reason) as the pilot was performing aerobatic flight. The airplane's excessive gross weight (for aerobatics) was a related factor.
- [NTSB LAX98LA108](https://openairdocs.org/ntsb/LAX98LA108.md): Bell UH-1B · Hollister, CA · Accident · Serious injuries · Limited investigation · Final report · Mar 7, 1998 · N204DR · Destroyed
  > The failure of the maintenance personnel to recognize and repair the chafed area of the tail rotor driveshaft, which resulted in an in-flight separation of the tail fin and hub assembly.
- [NTSB MIA98LA096](https://openairdocs.org/ntsb/MIA98LA096.md): Douglas DC-10-30F · Memphis, TN · Accident · Serious injuries · Limited investigation · Final report · Mar 6, 1998 · N303FE · No damage
  > ground personnel (an equipment loader) failed to follow established written procedures (ramp safety policy), resulting in a pressurized entry door being opened before it was fully depressurized, subsequently injurying the equipment loader. The malfunctioning…
- [NTSB NYC98FA073](https://openairdocs.org/ntsb/NYC98FA073.md): Piper PA-23-160 · Somerville, NJ · Accident · 2 fatal · Field investigation · Final report · Mar 4, 1998 · N3374P · Destroyed
  > in-flight separation of the empennage for undetermined reasons. "This case was modified August 2, 2006."
- [NTSB MIA98LA092](https://openairdocs.org/ntsb/MIA98LA092.md): Cessna 188B · Houston, MS · Accident · No injuries · Limited investigation · Final report · Mar 4, 1998 · N53382 · Substantial damage
  > corrosion and subsequent disconnect of the left aileron control rod end fitting, which resulted in a loss of aileron (roll) control, a forced landing, and subsequent impact with the terrain. A factor related to the accident was: improper lubrication of the…
- [NTSB FTW98LA134](https://openairdocs.org/ntsb/FTW98LA134.md): Burchinal A4D-2 · Fort Worth, TX · Accident · Minor injuries · Limited investigation · Final report · Feb 27, 1998 · N21NB · Substantial damage
  > A total hydraulic system failure for an undetermined reason.
- [NTSB MIA98LA084](https://openairdocs.org/ntsb/MIA98LA084.md): Walter J Collie Cumulus · Hillsboro, TN · Accident · 1 fatal · Limited investigation · Final report · Feb 24, 1998 · N1171U · Destroyed
  > Debonding of the leading edge to spar cap joint, which resulted in inflight separation.
- [NTSB FTW98LA139](https://openairdocs.org/ntsb/FTW98LA139.md): Piper PA-46-350P · Dallas, TX · Accident · No injuries · Limited investigation · Final report · Feb 24, 1998 · N9254X · Substantial damage
  > The nose gear collapsed for an undetermined reason. A factor was the total electrical failure due to the separation of the alternator output lugs resulting from inadequate maintenance.
- [NTSB ANC98LA017](https://openairdocs.org/ntsb/ANC98LA017.md): Cessna 185E · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Feb 24, 1998 · N4535F · Substantial damage
  > A separation of the axle from the landing gear strut due to overload, and stripping of the axle bolt threads.
- [NTSB FTW98IA130](https://openairdocs.org/ntsb/FTW98IA130.md): Saab-Scania 340B · Lawton, OK · Incident · No injuries · Incident investigation · Final report · Feb 22, 1998 · N396AE · Minor damage
  > the collapse of the left main landing gear during landing roll as result of a shorted weight-on-wheels relay. Contributing factors were the insufficient information available to the flight crew in the company's quick reference handbook (QRH), and the…
- [NTSB CHI98IA095](https://openairdocs.org/ntsb/CHI98IA095.md): Airbus Industrie A-320-212 · Memphis, TN · Incident · No injuries · Incident investigation · Final report · Feb 16, 1998 · N341NW · Minor damage
  > the inadequate (bronze) material used by the fuel pump's manufacturer, which wore and ultimately blocked the fuel filter bypass and partially blocked the fuel nozzles, causing the fuel spray to burn through the low pressure turbine case.
- [NTSB FTW98LA118](https://openairdocs.org/ntsb/FTW98LA118.md): Cessna 172M · Bulverde, TX · Accident · No injuries · Limited investigation · Final report · Feb 4, 1998 · N13711 · Substantial damage
  > The pilot's failure to maintain the proper glidepath following a total electrical failure resulting from an inoperative voltage regulator. Factors were the dark night conditions, the pilot's lack of experience in night flying, and the trees.
- [NTSB CHI98LA091](https://openairdocs.org/ntsb/CHI98LA091.md): Cessna 210G · Springfield, IL · Accident · No injuries · Limited investigation · Final report · Feb 4, 1998 · N5842F · Substantial damage
  > The failure of left main landing gear saddle resulting in the pilot's inability to extend the left gear. A factor was maintenance personnel's failure to comply with the related airworthiness directive.
- [NTSB FTW98LA124](https://openairdocs.org/ntsb/FTW98LA124.md): Piper PA-22-108 · Frederick, OK · Accident · No injuries · Limited investigation · Final report · Feb 3, 1998 · N4654Z · Substantial damage
  > The loss of wheel brakes due to the failure of the brake actuating cable. A factor was the tailwind.
- [NTSB CHI98FA086](https://openairdocs.org/ntsb/CHI98FA086.md): Piper PA-28-160 · Faribault, MN · Accident · 2 fatal · Field investigation · Final report · Jan 26, 1998 · N5099W · Destroyed
  > was the pilot's patial incapacitation due to carbon monoxide poisoning. A factor associated with this accident was the mechanic's inadequate inspection of the airplane's muffler and inadequate preflight planning and preparation by the pilot.
- [NTSB FTW98LA109](https://openairdocs.org/ntsb/FTW98LA109.md): Piper PA-32-300 · Alexandria, LA · Accident · No injuries · Limited investigation · Final report · Jan 25, 1998 · N2881D · Substantial damage
  > The fire in the normal braking system due to an undetermined reason.
- [NTSB MIA98LA078](https://openairdocs.org/ntsb/MIA98LA078.md): Lake LA-4-200 · Sarasota, FL · Accident · No injuries · Limited investigation · Final report · Jan 24, 1998 · N2994P · Substantial damage
  > inadequate clearance and fretting wear of the fitting/beam attachment to the angle/top beam, due to inadequate design, which resulted in fatigue and subsequent failure of the fitting/beam attachment ear.
- [NTSB ATL98IA039](https://openairdocs.org/ntsb/ATL98IA039.md): Robinson R-44 · Miami, FL · Incident · No injuries · Incident investigation · Final report · Jan 23, 1998 · N972SA · No damage
  > An inadequate service bulletin which did not require measurement of the cyclic trim assembly shaft and did not identify all helicopters in which shaft wear could lead to restricted movement of the lateral cyclic trim.
- [NTSB NYC98FA062](https://openairdocs.org/ntsb/NYC98FA062.md): Aerospatiale ATR-42-320 · Windsor Locks, CT · Accident · Minor injuries · Field investigation · Final report · Jan 22, 1998 · N15827 · Substantial damage
  > The improper overhaul of lug holes on the fuel/oil heat exchanger. A factor was the lack of direction contained in the manufacturer's overhaul manual for working with the lug holes.
- [NTSB FTW98TA104](https://openairdocs.org/ntsb/FTW98TA104.md): Hughes 269C · Brackettville, TX · Accident · Minor injuries · Final report · Jan 22, 1998 · N1093N · Substantial damage
  > failure of splines on the drive shaft coupling after separation of the forward bubber boot and loss of lubrication (grease), which resulted in a disconnect of the rotor drive system and an autorotation/forced landing. Lack of suitable terrain in the forced…
- [NTSB ATL98LA031](https://openairdocs.org/ntsb/ATL98LA031.md): Christopher Coats Challenger II · Evergreen, AL · Accident · No injuries · Limited investigation · Final report · Jan 17, 1998 · N132BC · Substantial damage
  > The undetermined failure of the propeller bolts that resulted in the inflight separation of the propeller assembly. A factor was the overpass bridge.
- [NTSB FTW98MA096](https://openairdocs.org/ntsb/FTW98MA096.md): Gates Learjet 25B · Houston, TX · Accident · 2 fatal · Major investigation · Final report · Jan 13, 1998 · N627WS · Destroyed
  > The flight crew's continued descent of the airplane below the glideslope and through the published decision height without visual contact with the runway environment. Also, when the captain encountered difficulty tracking the localizer course, his improper…
- [NTSB FTW98FA089](https://openairdocs.org/ntsb/FTW98FA089.md): Cameron R-420 · Yeso, NM · Accident · Serious injuries · Field investigation · Final report · Jan 9, 1998 · N298AR · Destroyed
  > The rupture of the gas cell bottom (diaphragm) due to inadequate manufacturer's design and inadequate manufacturing quality control. A factor was the flight crew's performance of an emergency bailout which allowed the balloon to drift unattended for…
- [NTSB ANC98LA014](https://openairdocs.org/ntsb/ANC98LA014.md): Douglas DC-6B · Mcgrath, AK · Accident · No injuries · Limited investigation · Final report · Jan 2, 1998 · N861TA · Destroyed
  > The ingestion of snow into the windshield anti-ice system, and the resulting obscured windshield which made runway alignment not possible. Factors associated with this accident were the cold windshield, the reduced performance of the windshield anti-ice…
- [NTSB FTW98LA071](https://openairdocs.org/ntsb/FTW98LA071.md): Unknown Quicksilver GT-500 · San Antonio, TX · Accident · Serious injuries · Limited investigation · Final report · Dec 21, 1997 · UNREG · Substantial damage
  > the kitplane builder's improper installation of the bolts attaching the left leading edge wing strut fitting to the leading edge spar, which resulted in the eventual failure of the fitting and the ensuing loss of control. Related factors were: the…
- [NTSB LAX98IA061](https://openairdocs.org/ntsb/LAX98IA061.md): McDonnell Douglas MD-80 · San Francisco, CA · Incident · No injuries · Incident investigation · Final report · Dec 20, 1997 · N932AS · No damage
  > An emergency evacuation due to fumes from a failed hydraulic line that entered into the cabin.
- [NTSB ATL98LA019](https://openairdocs.org/ntsb/ATL98LA019.md): Siggi's Airplane Works D-4 Fascination · Leesburg, FL · Accident · 2 fatal · Limited investigation · Final report · Dec 6, 1997 · DMSMV · Destroyed
  > structural failure of the right wing, during the initial climb after takeoff, which resulted in an uncontrolled descent to the ground.
- [NTSB FTW98LA060](https://openairdocs.org/ntsb/FTW98LA060.md): Piper PA-24-250 · Lubbock, TX · Accident · Minor injuries · Limited investigation · Final report · Dec 1, 1997 · N6661P · Substantial damage
  > The inadequate maintenance of the landing gear assembly by maintenance personnel resulting in a partial gear extension, and the pilot's misjudgment of a proper touchdown point to intentionally shut down the engine resulting in the airplane landing short of…
- [NTSB FTW98LA059](https://openairdocs.org/ntsb/FTW98LA059.md): Mooney M20F · Stuttgart, AR · Accident · No injuries · Limited investigation · Final report · Nov 27, 1997 · N2954L · Substantial damage
  > the pilot's failure to activate the runway lights, which led to his selection of a closed/abandoned runway for the landing. Factors relating to the accident were: the unlatched cabin door, and the lack of lighting conditions at dusk.
- [NTSB ATL98FA017](https://openairdocs.org/ntsb/ATL98FA017.md): Mark Ewart Velocity Standard RG · Florence, SC · Accident · 4 fatal · Field investigation · Final report · Nov 26, 1997 · N907ME · Substantial damage
  > improper maintenance procedures used by the pilot/repairman, which resulted in the loosening and eventual failure of the propeller. Factors relating to the accident were: the pilot's self-imposed pressure to hurry to the destination, and trees in the forced…
- [NTSB SEA98LA017](https://openairdocs.org/ntsb/SEA98LA017.md): Bell TH-1L · Canby, OR · Accident · Minor injuries · Limited investigation · Final report · Nov 25, 1997 · N8160G · Substantial damage
  > The pilot's allowance of excessive airspeed resulting in the long-line hook impacting the tail rotor, and his allowance of an airspeed bleed-off preventing a successful run-on landing due to a loss of yaw control.
- [NTSB FTW98LA055](https://openairdocs.org/ntsb/FTW98LA055.md): Piper PA-32RT-300T · Midlothian, TX · Accident · Minor injuries · Limited investigation · Final report · Nov 23, 1997 · N21433 · Substantial damage
  > fatigue failure of the #2 cylinder fuel injection line in an area where the line was previously damaged, which resulted in an in-flight engine compartment fire and a forced landing. Related factors were: the previous damage of the fuel injector line, and the…
- [NTSB ATL98LA022](https://openairdocs.org/ntsb/ATL98LA022.md): Christen Industries S-2B · Fort Lauderdale, FL · Accident · No injuries · Limited investigation · Final report · Nov 23, 1997 · N317JK · Substantial damage
  > The undetermined malfunction of the right brake and the pilot's failure to maintain directional control during the landing rollout. A factor was the quartering tailwind.
- [NTSB MIA98IA035](https://openairdocs.org/ntsb/MIA98IA035.md): Douglas DC-8F-55 · Miami, FL · Incident · No injuries · Incident investigation · Final report · Nov 20, 1997 · N55FB · Minor damage
  > The inadequate overhaul of the No. 4 engine start valve resulting in the valve remaining open after engine start; and the subsequent free run state of the starter resulting in a starter overheat, disintegration and fire.
- [NTSB CHI98LA040](https://openairdocs.org/ntsb/CHI98LA040.md): Cessna 172 · Salem, IN · Accident · Serious injuries · Limited investigation · Final report · Nov 20, 1997 · N92042 · Substantial damage
  > the pilot's misjudgment of distance and altitude, while on final approach to land at night. Factors relating to the accident included: an undetermined electrical malfunction, inoperative flaps, darkness, the pilot not using the landing light, and the…
- [NTSB MIA98LA027](https://openairdocs.org/ntsb/MIA98LA027.md): Naval Aircraft Factory N3N-3 · Spruce Pine, NC · Accident · No injuries · Limited investigation · Final report · Nov 18, 1997 · N45018 · Substantial damage
  > The unintentional locking-up of the left brake for undetermined reasons resulting in the on ground loss of control. Contributing to the accident was the inability of the pilot to maintain directional control.
- [NTSB CHI98IA035](https://openairdocs.org/ntsb/CHI98IA035.md): Cessna 152 · Blaine, MN · Incident · No injuries · Incident investigation · Final report · Nov 12, 1997 · N48863 · Minor damage
  > the fracture of the flap cable as a result of fatigue cracking.
- [NTSB LAX98LA034](https://openairdocs.org/ntsb/LAX98LA034.md): Globe GC-1B · Los Angeles, CA · Accident · No injuries · Limited investigation · Final report · Nov 8, 1997 · N3232K · Substantial damage
  > The pilot's loss of directional control due to an inadvertent ground loop resulting from a deflated tire.
- [NTSB MIA98FA025](https://openairdocs.org/ntsb/MIA98FA025.md): Fokker F100 · Charlotte, NC · Accident · No injuries · Field investigation · Final report · Nov 7, 1997 · N865US · Substantial damage
  > Improper written instructions (job/task card) by company maintenance personnel. The procedures did not reflect the correct manufactures maintenance manual servicing procedure, and did not ensure that the proper tool (replenishing gun) was available for the…
- [NTSB FTW98FA044](https://openairdocs.org/ntsb/FTW98FA044.md): Piper PA-34-200T · Myton, UT · Accident · 1 fatal · Field investigation · Final report · Nov 7, 1997 · N2119D · Destroyed
  > The pilot exceeded the design stress limits of the airplane which resulted in an in-flight airframe overload failure. A related factor was the dark night.
- [NTSB CHI98LA032](https://openairdocs.org/ntsb/CHI98LA032.md): Cessna 421A · Tomahawk, WI · Accident · No injuries · Limited investigation · Final report · Nov 7, 1997 · N2957Q · Substantial damage
  > the elevator trim tab bolt backed out, allowing the trim tab to flutter, and destroy the elevator. The factors involved were improper annual inspection by the maintenance personnel, and the inadequate aircraft preflight done by the pilot.

Next page: https://openairdocs.org/ntsb.md?occurrence=130&page=27

## 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=26

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
