# 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 23 of 79 · 3,929 cases

## Cases, newest first

- [NTSB LAX99LA219](https://openairdocs.org/ntsb/LAX99LA219.md): Beech A-36 · Van Nuys, CA · Accident · No injuries · Limited investigation · Final report · Jun 5, 1999 · N126GL · Substantial damage
  > The failure of the pilot to verify that the alternator was activated after engine start, subsequently resulting in a total electrical failure; and his inadequate emergency procedures for manual extension of the landing gear following the electrical failure.
- [NTSB NYC99LA134](https://openairdocs.org/ntsb/NYC99LA134.md): Saliba Long EZ · Friendly, MD · Accident · 1 fatal · Limited investigation · Final report · Jun 2, 1999 · N555L · Destroyed
  > The separation of the airplane canopy for undetermined reasons, the diminished controllability of the airplane, and the pilot's failure to maintain airspeed resulting in a stall/mush into trees short of the runway.
- [NTSB FTW99LA156](https://openairdocs.org/ntsb/FTW99LA156.md): Cessna 195 · Conroe, TX · Accident · No injuries · Limited investigation · Final report · May 31, 1999 · N2151C · Substantial damage
  > The fatigue fracture of the left main landing gear spring at the clamping mechanism, as a result of fretting.
- [NTSB SEA99LA073](https://openairdocs.org/ntsb/SEA99LA073.md): Cessna 180K · Bremerton, WA · Accident · No injuries · Limited investigation · Final report · May 23, 1999 · N2567K · Substantial damage
  > Failure of the landing gear attach bolt due to fatigue failure resulting in the left main landing gear collapsing.
- [NTSB SEA99LA070](https://openairdocs.org/ntsb/SEA99LA070.md): Piper PA-24-180 · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · May 23, 1999 · N6017P · Substantial damage
  > A loose alternator drive belt, and the flight crew's decision to continue flight with a known electrical system deficiency, resulting in disabling of the aircraft electrical system and landing with the gear not down-and-locked.
- [NTSB ATL99LA092](https://openairdocs.org/ntsb/ATL99LA092.md): Murray R. Gardner FLY Baby · Mount Olive, NC · Accident · Minor injuries · Limited investigation · Final report · May 22, 1999 · N96MG · Substantial damage
  > A fatigue failure of the flywire bracket that resulted in the inflight separation of the left wing.
- [NTSB FTW99LA145](https://openairdocs.org/ntsb/FTW99LA145.md): Bellanca 8KCAB · Lufkin, TX · Accident · No injuries · Limited investigation · Final report · May 21, 1999 · N5500C · Substantial damage
  > The loss of control due to the separation of the left main landing gear as a result of the fatigue failure of the U-bolt which attaches the landing gear to the airframe.
- [NTSB MIA99FA159](https://openairdocs.org/ntsb/MIA99FA159.md): Classic S-51D · Tamarac, FL · Accident · 1 fatal · Field investigation · Final report · May 20, 1999 · N25VV · Destroyed
  > A complete loss of engine power caused by the malfunctioning landing gear, which blocked the radiator scoop, leading to increased fuel temperature and the subsequent vapor lock condition and fuel blockage. A secondary cause was the pilot's failure to maintain…
- [NTSB NYC99LA113](https://openairdocs.org/ntsb/NYC99LA113.md): Hiller UH-12C · Grafton, OH · Accident · No injuries · Limited investigation · Final report · May 16, 1999 · N812WC · Substantial damage
  > Inadequate maintenance which resulted in the failure of the mercury clutch assembly.
- [NTSB SEA99LA063](https://openairdocs.org/ntsb/SEA99LA063.md): Lake LA-4 · Coeur D'Alene, ID · Accident · No injuries · Limited investigation · Final report · May 15, 1999 · N152WB · Substantial damage
  > The fatigue failure of a repair weld on one of the engine pylon mount straps and the resultant reduction in directional control. Factors include an inadequate repair of the strap, variable wind speeds and sudden wind shifts.
- [NTSB LAX99LA175](https://openairdocs.org/ntsb/LAX99LA175.md): Matter GLASAIR-SH-2R · St. Johns, AZ · Accident · Minor injuries · Limited investigation · Final report · May 8, 1999 · N6DM · Substantial damage
  > The pilot misjudging the distance/altitude while on final approach to the runway, which resulted in a landing overrun. Factors were the pilot's failure to position the flap switch to the neutral position after takeoff, resulting in the continuous running and…
- [NTSB ATL99LA082](https://openairdocs.org/ntsb/ATL99LA082.md): Piper PA-24-250 · Southern Pines, NC · Accident · No injuries · Limited investigation · Final report · May 8, 1999 · N7001P · Substantial damage
  > A failure of the left main landing gear retraction assembly as a result of the disconnection of the left main landing gear strap bracket assembly from the main gear spring attachment bracket due to the missing nut. A factor was the ditch.
- [NTSB NYC99LA102](https://openairdocs.org/ntsb/NYC99LA102.md): Glaser-Dirks DG-400 · New Milford, CT · Accident · Minor injuries · Limited investigation · Final report · May 1, 1999 · N400FJ · Destroyed
  > The manufacturer's use of inadequate adhesive material which resulted in the de-bonding and subsequent failure of the wing spar pin-lock assembly.
- [NTSB FTW99FA123](https://openairdocs.org/ntsb/FTW99FA123.md): Cessna 402C · Goldsby, OK · Accident · 1 fatal · Field investigation · Final report · Apr 27, 1999 · N819BW · Destroyed
  > The fatigue failure of the right wing spar as a result of inadequate quality control during manufacture of the spar. A factor was the inadequate inspection of the right wing by maintenance personnel, which failed to detect the crack.
- [NTSB CHI99IA144](https://openairdocs.org/ntsb/CHI99IA144.md): Cessna 206H · Wheeling, IL · Incident · No injuries · Incident investigation · Final report · Apr 26, 1999 · N42122 · No damage
  > improper installation of the aileron control bellcrank stop bolts and lock nuts during the manufacturing process which resulted in a binding aileron control surface.
- [NTSB MIA99LA138](https://openairdocs.org/ntsb/MIA99LA138.md): Piper PA-24-180 · Fernandina Bch, FL · Accident · No injuries · Limited investigation · Final report · Apr 22, 1999 · N7059P · Substantial damage
  > The failure of the pilot to use the printed checklist which resulted in the gear-up landing. A factor associated with the accident was the intermittent failure of the gear warning horn.
- [NTSB ATL99FA072](https://openairdocs.org/ntsb/ATL99FA072.md): Beech T-34A · Rydal, GA · Accident · 2 fatal · Field investigation · Final report · Apr 19, 1999 · N140SW · Destroyed
  > Fracture of the wing spar as a result of fatigue cracking that occurred over an unknown number of flights and flight hours with a wing loading spectrum not anticipated during design of the airplane. This report was modified on November 2, 2005.
- [NTSB MIA99LA130](https://openairdocs.org/ntsb/MIA99LA130.md): Zemp Avid Catalina · Sebring, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 14, 1999 · N9224T · Substantial damage
  > The in-flight separation of one of the propeller blade's and one of the engine's exhaust pipes causing the engine to vibrate until it stopped running. A related factor was the unsuitable terrain for the forced landing.
- [NTSB MIA99LA128](https://openairdocs.org/ntsb/MIA99LA128.md): Piper PA-44-180 · Vero Beach, FL · Accident · No injuries · Limited investigation · Final report · Apr 14, 1999 · N30397 · Substantial damage
  > The improper return to service of a propeller hub by a propeller overhaul company which according to manufacturer's procedures should have been retired due to damage to propeller blades from sudden stoppage. This resulted in undetected fatigue propagation…
- [NTSB MIA99LA127](https://openairdocs.org/ntsb/MIA99LA127.md): Lake LA-4-200 · Pensacola, FL · Accident · No injuries · Limited investigation · Final report · Apr 14, 1999 · N959DF · Substantial damage
  > The pilot's inability to maintain directional control due to failure of the main landing gear, and partial electrical system failure for undetermined reasons.
- [NTSB MIA99LA124](https://openairdocs.org/ntsb/MIA99LA124.md): Bean Whitman W-10 · Wimauma, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 12, 1999 · N173RS · Substantial damage
  > The pilot's failure to maintain a visual lookout during a forced landing resulting in an in-flight collision with a ditch and subsequent nose over.
- [NTSB CHI99IA136](https://openairdocs.org/ntsb/CHI99IA136.md): McDonnell Douglas DC-9-32 · Dubuque, IA · Incident · No injuries · Incident investigation · Final report · Apr 9, 1999 · N205ME · No damage
  > the frozen elevator control. Factors to the incident were the rain and the low temperature.
- [NTSB SEA99IA045](https://openairdocs.org/ntsb/SEA99IA045.md): Fokker F.28 MK 4000 · Spokane, WA · Incident · No injuries · Incident investigation · Final report · Apr 1, 1999 · N477AU · No damage
  > A chafed hydraulic line.
- [NTSB FTW99LA107](https://openairdocs.org/ntsb/FTW99LA107.md): Air Tractor AT-301 · Garwood, TX · Accident · No injuries · Limited investigation · Final report · Mar 31, 1999 · N8789S · Substantial damage
  > The pilot's inability to maintain directional control of the airplane as result of the failure of the right brake system due to the stripped threads on the eye bolt connecting the brake pedal to the brake master cylinder.
- [NTSB CHI99FA120](https://openairdocs.org/ntsb/CHI99FA120.md): Extra Flugzeugbau 300S · Dow, IL · Accident · No injuries · Field investigation · Final report · Mar 24, 1999 · N9K · Substantial damage
  > a fatigue failure of the upper left longeron and adjacent diagonal cross member near the horizontal stabilizer attach point. A factor related to the accident was that the manufacturer informed the operator that they were already in compliance with the latest…
- [NTSB CHI99IA115](https://openairdocs.org/ntsb/CHI99IA115.md): McDonnell Douglas DC-9-14 · Grand Rapids, MI · Incident · No injuries · Incident investigation · Final report · Mar 22, 1999 · N600ME · No damage
  > the frozen elevator control. Factors were the rain and the low temperatures.
- [NTSB ATL99LA057](https://openairdocs.org/ntsb/ATL99LA057.md): Beech 23 · Jacksonville, FL · Accident · No injuries · Limited investigation · Final report · Mar 21, 1999 · N3621Q · Substantial damage
  > The overload failure of the landing gear attach points during takeoff from a turf airstrip. Factors are rough and uneven terrain.
- [NTSB LAX99FA128](https://openairdocs.org/ntsb/LAX99FA128.md): Ercoupe 415E · Kingman, AZ · Accident · 2 fatal · Field investigation · Final report · Mar 20, 1999 · N94818 · Destroyed
  > The in-flight loss of airplane control due to rear wing spar attachment fitting failure. The failure resulted from severe corrosion that was undetected during performance of an inspection specified by an airworthiness directive. The airworthiness directive…
- [NTSB ATL99LA056](https://openairdocs.org/ntsb/ATL99LA056.md): Cessna 152 · Bunn Level, NC · Accident · Minor injuries · Limited investigation · Final report · Mar 20, 1999 · N46542 · Substantial damage
  > The loss of engine power for undetermined reasons. Factors were an electrical system malfunction for undetermined reasons and the dark night conditions.
- [NTSB DEN99IA053](https://openairdocs.org/ntsb/DEN99IA053.md): Gulfstream G-IV · Durango, CO · Incident · No injuries · Incident investigation · Final report · Mar 13, 1999 · N411WW · Minor damage
  > The failure of the number four fuel line. Factors were the chaffing of the alternator's electrical wires on the number four fuel line, and the subsequent fire in the number one engine nacelle.
- [NTSB CHI99FA105](https://openairdocs.org/ntsb/CHI99FA105.md): Beech C-45G · Romulus, MI · Accident · 1 fatal · Field investigation · Final report · Mar 11, 1999 · N234L · Destroyed
  > the aircraft control not maintained and the inadvertent stall by the pilot while maneuvering to the landing area. The open door was a contributing factor.
- [NTSB SEA99LA038](https://openairdocs.org/ntsb/SEA99LA038.md): Sikorsky S-64E · Shelton, WA · Accident · 1 fatal · Limited investigation · Final report · Mar 2, 1999 · N194AC · No damage
  > The failure of the victim to follow the procedure that required him to make sure that all choker lines had separated from the helicopter's release mechanism prior to entering the landing (collection area).
- [NTSB CHI99LA099](https://openairdocs.org/ntsb/CHI99LA099.md): Calkins Kitfox 5 · Waunakee, WI · Accident · No injuries · Limited investigation · Final report · Mar 1, 1999 · N394GL · Destroyed
  > the fracture of the trim actuator.
- [NTSB FTW99LA086](https://openairdocs.org/ntsb/FTW99LA086.md): Keil Jaeger D-IX · Santa Fe, TX · Accident · 1 fatal · Limited investigation · Final report · Feb 28, 1999 · N257JK · Destroyed
  > The separation of the right upper aileron for an undetermined reason.
- [NTSB MIA99LA091](https://openairdocs.org/ntsb/MIA99LA091.md): Mooney M20J · St. Cloud, FL · Accident · No injuries · Limited investigation · Final report · Feb 25, 1999 · N4671H · Substantial damage
  > The improper installation of the propeller by maintenance personnel resulting in fretting of the face of the propeller hub and fatigue failure of the No. 1 propeller blade. Also, the unsuitable terrain encountered during the descent for the forced landing.
- [NTSB NYC99IA062](https://openairdocs.org/ntsb/NYC99IA062.md): Airbus Industrie A-320-231 · Columbus, OH · Incident · No injuries · Incident investigation · Final report · Feb 16, 1999 · N628AW · Minor damage
  > a failure of the external o-rings in the nose landing gear steering module.
- [NTSB CHI99LA092](https://openairdocs.org/ntsb/CHI99LA092.md): Cessna 172RG · Lawrenceville, IL · Accident · No injuries · Limited investigation · Final report · Feb 15, 1999 · N9506D · Substantial damage
  > the fatigue fracture of the landing gear actuator.
- [NTSB FTW99LA079](https://openairdocs.org/ntsb/FTW99LA079.md): Miller/Bell TR-1 · Hiwasse, AR · Accident · No injuries · Limited investigation · Final report · Feb 8, 1999 · N9194X · Substantial damage
  > The pilot's inadequate compensation for prevailing wind conditions. Factors were the crosswind, the lack of suitable terrain, and the separation of the adell clamp for the oil cooler inlet line.
- [NTSB ANC99IA027](https://openairdocs.org/ntsb/ANC99IA027.md): McDonnell Douglas MD-82 · Fairbanks, AK · Incident · No injuries · Incident investigation · Final report · Feb 5, 1999 · N934AS · No damage
  > The restricted/delayed movement of the elevator flight control due to extremely cold weather conditions.
- [NTSB FTW99LA078](https://openairdocs.org/ntsb/FTW99LA078.md): Taylorcraft BC12-D1 · Daingerfield, TX · Accident · Minor injuries · Limited investigation · Final report · Feb 2, 1999 · N44174 · Substantial damage
  > An undetermined airframe malfunction which rendered the aircraft uncontrollable.
- [NTSB LAX99IA085](https://openairdocs.org/ntsb/LAX99IA085.md): Aerospatiale AS350B · Grand Canyon Pk, AZ · Incident · No injuries · Incident investigation · Final report · Feb 1, 1999 · N32GA · Minor damage
  > The in-flight separation of a side window for undetermined reasons.
- [NTSB CHI99FA079](https://openairdocs.org/ntsb/CHI99FA079.md): Cessna U-206G · Salem, MO · Accident · 1 fatal · Field investigation · Final report · Jan 31, 1999 · N7586N · Destroyed
  > the spatial disorientation and loss of control by the pilot after a reported vacuum failure. Factors were instrument flight conditions and icing conditions.
- [NTSB DEN99FA034](https://openairdocs.org/ntsb/DEN99FA034.md): Cessna P210N · Albuquerque, NM · Accident · 3 fatal · Field investigation · Final report · Jan 20, 1999 · N79NL · Destroyed
  > Total failure of the vacuum system, and failure of the pilot to maintain aircraft control, resulting in wing spar failure. Factors were the pilot's spatial disorientation, and his exceeding the design stress limits of the airplane.
- [NTSB ANC99IA025](https://openairdocs.org/ntsb/ANC99IA025.md): Boeing 747-100 · Fairbanks, AK · Incident · No injuries · Incident investigation · Final report · Jan 19, 1999 · N481EV · Minor damage
  > The improper overhaul of the thrust reverser pneumatic drive unit, and the subsequent failure of the thrust reverser actuator. Factors associated with the incident were the inadequate quality assurance procedures by the overhaul company.
- [NTSB FTW99LA093](https://openairdocs.org/ntsb/FTW99LA093.md): Beech G35 · Ennis, TX · Accident · No injuries · Limited investigation · Final report · Jan 18, 1999 · N4662D · Substantial damage
  > Flutter of the empennage for an undetermined reason, which resulted in damage to the aft fuselage.
- [NTSB DEN99IA033](https://openairdocs.org/ntsb/DEN99IA033.md): Beech E90 · Clovis, NM · Incident · No injuries · Incident investigation · Final report · Jan 18, 1999 · N16NM · No damage
  > Total failure of the elevator control cable due to a short circuit from chafing against an adjoining electrical cable, and failure of maintenance personnel to detect the problem during an AAIP phase inspection.
- [NTSB LAX99LA074](https://openairdocs.org/ntsb/LAX99LA074.md): Abraham J G II/Erickson K ONE Design · No Las Vegas, NV · Accident · No injuries · Limited investigation · Final report · Jan 17, 1999 · N857JA · Destroyed
  > The separation of the left rudder control cable from the rudder horn due to the improper installation of a nicopress fitting that secured the cable to the control horn.
- [NTSB FTW99LA059](https://openairdocs.org/ntsb/FTW99LA059.md): Cessna 421C · Shelbyville, TX · Accident · Minor injuries · Limited investigation · Final report · Jan 1, 1999 · N234CG · Substantial damage
  > The total failure of the aircraft's electrical system. Factors were the thunderstorms, the dusk light condition, and the lack of suitable terrain for the precautionary landing.
- [NTSB CHI99LA057](https://openairdocs.org/ntsb/CHI99LA057.md): Mooney M20E · Tryon, NE · Accident · No injuries · Limited investigation · Final report · Dec 31, 1998 · N333WS · Substantial damage
  > other maintenance personnel's not correcting a loose cylinder assembly. Factors were loose engine cylinder assembly, fractured cylinder mounting hardware, the roadway, and road sign.
- [NTSB LAX99LA061](https://openairdocs.org/ntsb/LAX99LA061.md): Ercoupe 415-C · San Ysabel, CA · Accident · No injuries · Limited investigation · Final report · Dec 30, 1998 · N99371 · Substantial damage
  > A fatigue fracture of the crankshaft and the resulting separation of the propeller.

Next page: https://openairdocs.org/ntsb.md?occurrence=130&page=24

## 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=23

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