# NTSB investigations: Pratt & Whitney JT8D series: 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.

## Latest cases

- [NTSB LAX06IA301](https://openairdocs.org/ntsb/LAX06IA301.md): McDonnell Douglas DC-9-83 · Long Beach, CA · Incident · No injuries · Incident investigation · Final report · Aug 21, 2006 · N944AS · Minor damage
  > The over wing heater blanket wiring installation that had chaffed and arced, which produced an electrical smell in the cabin area.
- [NTSB CHI06FA158](https://openairdocs.org/ntsb/CHI06FA158.md): McDonnell Douglas DC-9-83 · Chicago, IL · Accident · No injuries · Field investigation · Final report · Jun 20, 2006 · N961TW · Substantial damage
  > The jammed nose landing gear due to a failure of the nose landing gear spray deflector for undetermined reasons.
- [NTSB DEN05LA077](https://openairdocs.org/ntsb/DEN05LA077.md): McDonnell Douglas MD-88 · Denver, CO · Accident · No injuries · Limited investigation · Final report · May 14, 2005 · N949DL · Substantial damage
  > the failure of the nose gear actuator resulted in penetration of the forward pressure bulkhead and a loss of pressurization.
- [NTSB DCA03IA058](https://openairdocs.org/ntsb/DCA03IA058.md): McDonnell Douglas MD-80 · Dfw, TX · Incident · Minor injuries · Incident investigation · Final report · Sep 25, 2003 · N462AA · No damage
  > The improper maintenance of the tailcone evacuation system, which prevented the evacuation slide from inflating during an evacuation due to smoke/fumes in the cabin.
- [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 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 MIA99IA046](https://openairdocs.org/ntsb/MIA99IA046.md): Boeing 737-232 · Orlando, FL · Incident · No injuries · Incident investigation · Final report · Dec 15, 1998 · N327DL · Minor damage
  > A discharged battery due to a loss of electrolyte, and the latent shorted failures of the No. 1 and 2 generator control unit (GCU) blocking diodes (CR910) for undetermined reasons. These failures resulted in an excessive current drawn from both GCUs, during…
- [NTSB CHI98IA167](https://openairdocs.org/ntsb/CHI98IA167.md): McDonnell Douglas MD82 · Washington, DC · Incident · No injuries · Incident investigation · Final report · Apr 11, 1998 · N951U · No damage
  > The failure of the Dual Axis Accelerometer.
- [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 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 NYC96IA169](https://openairdocs.org/ntsb/NYC96IA169.md): Boeing 727-232 · Howard Beach, NY · Incident · No injuries · Incident investigation · Final report · Aug 16, 1996 · N24343 · Minor damage
  > fatigue failure of the fore flap attachment fitting, due to grinding marks on the fitting.
- [NTSB CHI96LA011](https://openairdocs.org/ntsb/CHI96LA011.md): McDonnell Douglas DC-9-31 · Cedar Rapids, IA · Accident · No injuries · Limited investigation · Final report · Oct 14, 1995 · N945AX · Substantial damage
  > inadequate installation of a thrust reverser, driver linkage arm pivot bolt and nut, which resulted in the nut and bolt becoming disconnected. A factor relating to the accident was: the manufacturer's unclear information regarding the type and number of…
- [NTSB CHI93IA352](https://openairdocs.org/ntsb/CHI93IA352.md): Mcdonnell Douglas DC-9-82 · St. Louis, MO · Incident · No injuries · Incident investigation · Final report · Sep 2, 1993 · N918TW · No damage
  > a fatigue failure of the power transfer unit caused by a material defect which resulted in a total hydraulic system failure.
- [NTSB DEN93IA005](https://openairdocs.org/ntsb/DEN93IA005.md): Mcdonnell Douglas DC-9-82 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Oct 13, 1992 · N72822 · Minor damage
  > An inadvertent attempt, by unknown persons, to start the APU which had been placarded as inoperative. Factors were: inadequate procedures in rendering the APU incapable of being started when inoperative.
- [NTSB ATL92IA025](https://openairdocs.org/ntsb/ATL92IA025.md): Mcdonnell Douglas MD-88 · Atlanta, GA · Incident · No injuries · Incident investigation · Final report · Nov 20, 1991 · N908DL · No damage
  > A short in an electrical connector which resulted in its failure. The reason for the short was not determined. A factor was the improper installation of the connector by an unknown maintenance person.
- [NTSB CHI89IA083](https://openairdocs.org/ntsb/CHI89IA083.md): Mcdonnell Douglas DC-9-82 · Minneapolis, MN · Incident · No injuries · Incident investigation · Final report · May 2, 1989 · N434AA · Minor damage
  > Failure of the hydraulic power transfer unit shut-off (ptu s/o) valve due to failed (fatigued) valve body attach screws.
- [NTSB MKC89IA024](https://openairdocs.org/ntsb/MKC89IA024.md): Mcdonnell Douglas DC9-31 · Minneapolis, MN · Incident · No injuries · Incident investigation · Final report · Nov 16, 1988 · N965VJ · Minor damage
  > The failure of the left main landing gear tire carcass and the ingestion of the tire debris into the left engine which hindered normal operation.
- [NTSB MIA87IA068](https://openairdocs.org/ntsb/MIA87IA068.md): Boeing 727-223 · Tampa, FL · Incident · No injuries · Incident investigation · Final report · Jan 6, 1987 · N6819 · Minor damage
  > The regularly scheduled air carrier flight was climbing to altitude when the engine oil pressure and quantity dropped to zero on the #3 engine; it was shut down. Shortly thereafter, the #1 engine oil pressure dropped to zero. It was reduced to idle and the…
- [NTSB MKC84IA017](https://openairdocs.org/ntsb/MKC84IA017.md): Mcdonnell Douglas DC9-80 · St. Louis, MO · Incident · No injuries · Incident investigation · Final report · Nov 8, 1983 · N903TW · Minor damage
  > During landing rollout the aft fiberglass tailcone fell off the acft for undetermined reasons.
- [NTSB FTW84IA007](https://openairdocs.org/ntsb/FTW84IA007.md): Boeing B727-023 · Dfw Airport, TX · Incident · Minor injuries · Incident investigation · Final report · Oct 6, 1983 · N1972 · Minor damage
  > A brake fire resulting from a dragging brake the cause of which was not determined was the reason for an evacuation during taxi back to the ramp because of a brake discrepancy. The slide lost pressure which was attributed to a high heel shoe.

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52053', '52377')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND 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?engine=52053&occurrence=130

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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.