# NTSB investigations, 2003: Loss of engine power(partial) - mech failure/malf

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 DCA04IA002](https://openairdocs.org/ntsb/DCA04IA002.md): Airbus Industrie A330 · Miami, FL · Incident · No injuries · Incident investigation · Final report · Oct 5, 2003 · HB-IQZ · Minor damage
  > an uncontained engine failure that resulted from the coking (carbon build-up) in a vent tube which led to a fire and the subsequent liberation of the IP turbine blades. Contributing to the cause of the uncontained engine failure was the absence of measures to…
- [NTSB MIA03LA179](https://openairdocs.org/ntsb/MIA03LA179.md): Cessna 152 · Kissimmee, FL · Accident · Minor injuries · Limited investigation · Final report · Sep 9, 2003 · N5172B · Substantial damage
  > A loss of engine power due to inadequate maintenance.
- [NTSB SEA03LA176](https://openairdocs.org/ntsb/SEA03LA176.md): Mooney M20D · Hood River, OR · Accident · Minor injuries · Limited investigation · Final report · Aug 24, 2003 · N6619U · Substantial damage
  > A power loss due to a mis-seated intake valve on the #1 cylinder resulting in leakage during the compression stroke and low compression. Contributing factors were the rising terrain and trees.
- [NTSB LAX03LA260](https://openairdocs.org/ntsb/LAX03LA260.md): Ercoupe 415-C · Saint Johns, AZ · Accident · No injuries · Limited investigation · Final report · Aug 22, 2003 · N3182H · Substantial damage
  > The failure of the exhaust valve on the number two engine cylinder, which resulted in a partial loss of engine power during the final approach to land, and an on ground collision with a ditch during the subsequent off-airport landing roll.
- [NTSB NYC03LA168](https://openairdocs.org/ntsb/NYC03LA168.md): Air Tractor AT-301 · Rhinebeck, NY · Accident · Minor injuries · Limited investigation · Final report · Jul 26, 2003 · N23820 · Substantial damage
  > A loss of engine power due to a failure of the number eight cylinder.
- [NTSB SEA03LA156](https://openairdocs.org/ntsb/SEA03LA156.md): Hughes 269C · Marblemount, WA · Accident · No injuries · Limited investigation · Final report · Jul 25, 2003 · N500HS · Substantial damage
  > The partial failure of a magneto during hover taxi over water, leading to a forced landing in shallow water near the shoreline. Factors include the aircraft being over a lake at the time that the partial loss of power made it impossible to keep it airborne.
- [NTSB NYC03FA164](https://openairdocs.org/ntsb/NYC03FA164.md): Hawker T Mk 7A · Pittston, PA · Accident · 1 fatal · Field investigation · Final report · Jul 22, 2003 · UNREG · Destroyed
  > The pilot's failure to abort the takeoff, after the engine experienced a partial power loss for undetermined reasons. Factors were the pilot's improper preflight planning by his failure to determine if the airplane was airworthy, and the operators inadequate…
- [NTSB SEA03LA146](https://openairdocs.org/ntsb/SEA03LA146.md): Cessna 182S · Henry's Lake, ID · Accident · No injuries · Limited investigation · Final report · Jul 21, 2003 · N146NE · Substantial damage
  > A set of inadequately torqued vacuum pump retaining nuts, leading to the failure of the vacuum pump gasket, resulting in oil exhaustion, which resulted in a loss of engine power during cruise. A ditch and rough uneven terrain were factors.
- [NTSB MIA03LA143](https://openairdocs.org/ntsb/MIA03LA143.md): Cessna 172P · Plymouth, FL · Accident · No injuries · Limited investigation · Final report · Jul 20, 2003 · N52186 · Substantial damage
  > The pilot's continue operation with known deficiencies (engine vibration) resulting in a partial loss of engine power during climb after takeoff and overrun of the runway during the aborted takeoff.
- [NTSB FTW03LA188](https://openairdocs.org/ntsb/FTW03LA188.md): Mooney M20F · Kerrville, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 18, 2003 · N353JT · Substantial damage
  > The loss of engine power due to the failure of the number three cylinder as the result of undertorqued cylinder bolts. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB DEN03LA134](https://openairdocs.org/ntsb/DEN03LA134.md): Piper PA-32R-301 · Logan, UT · Accident · No injuries · Limited investigation · Final report · Jul 18, 2003 · N8036D · Substantial damage
  > the loss of engine power due to partial mechanical failure, which resulted in a forced landing. Contributing factors include the pilot's improper preflight planning/preparation, the improper rigging of the propeller governor control, the high density altitude…
- [NTSB ATL03LA109](https://openairdocs.org/ntsb/ATL03LA109.md): Keuthan Buccaneer II · Pell City, AL · Accident · No injuries · Limited investigation · Final report · Jul 17, 2003 · N9110T · Substantial damage
  > The failure of the throttle cable due to fatigue resulting in a loss of engine power. Factor were uphill rough and uneven terrain.
- [NTSB IAD03LA063](https://openairdocs.org/ntsb/IAD03LA063.md): Piper PA-23-180 · Akron, OH · Accident · Serious injuries · Limited investigation · Final report · Jul 12, 2003 · N825SA · Destroyed
  > the pilot's failure to maintain minimum control single engine airspeed (Vmc) during a loss of power on one engine, which resulted in a loss of control in flight an in-flight collision with terrain. A factor was a shifted main journal, which resulted in a…
- [NTSB NYC03LA155](https://openairdocs.org/ntsb/NYC03LA155.md): Beech BE-56TC · Bethany, WV · Accident · Serious injuries · Limited investigation · Final report · Jul 9, 2003 · N156DK · Substantial damage
  > A total loss of power in the right engine for undetermined reasons. A factor was a partial loss of power in the left engine due to a loose oil line.
- [NTSB DEN03LA123](https://openairdocs.org/ntsb/DEN03LA123.md): Piper PA-46-310P · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Jul 6, 2003 · N4386G · Substantial damage
  > the pilot's improper flare which resulted in a hard landing. Contributing factors were the out-of-calibration waste gate actuator, a blown tire, and the airport sign.
- [NTSB SEA03LA125](https://openairdocs.org/ntsb/SEA03LA125.md): Sikorsky UH-19D · La Grande, OR · Accident · No injuries · Limited investigation · Final report · Jul 4, 2003 · N37799 · Destroyed
  > The cross threading and separation of the clutch assembly while maneuvering which resulted in a loss of engine power followed by a hard landing. An inadequate maintenance overhaul was a factor.
- [NTSB NYC03LA137](https://openairdocs.org/ntsb/NYC03LA137.md): Cessna 150F · Williamson, NY · Accident · No injuries · Limited investigation · Final report · Jun 26, 2003 · N8517G · Substantial damage
  > The failure of a rocker arm shaft boss, which resulted in a partial loss of power and subsequent forced landing. A factor was the unsuitable terrain.
- [NTSB IAD03CA062](https://openairdocs.org/ntsb/IAD03CA062.md): William Stevens RAF2000 · Stoutsville, OH · Accident · No injuries · Data collection · Final report · Jun 22, 2003 · N186S · Substantial damage
  > Separation of the engine computer wire and connector, which resulted in a partial loss of engine power.
- [NTSB NYC03FA131](https://openairdocs.org/ntsb/NYC03FA131.md): Cessna 205 · Jeannette, PA · Accident · 4 fatal · Field investigation · Final report · Jun 15, 2003 · N124A · Substantial damage
  > The loss of power caused by fragments of the air filter being ingested in the engine. A factor was the pilot's delayed decision to perform a forced landing after experiencing a partial loss of engine power.
- [NTSB SEA03LA076](https://openairdocs.org/ntsb/SEA03LA076.md): Fokker F27MK 600 · Port Townsend, WA · Accident · No injuries · Limited investigation · Final report · Apr 17, 2003 · N730FE · Substantial damage
  > The failure of the accessory drive shaft due to deterioration of bearing number 1 in the aft fork of the universal joint for undetermined reasons during cruise flight.
- [NTSB FTW03FA118](https://openairdocs.org/ntsb/FTW03FA118.md): Bell 407 · Broadus, TX · Accident · 2 fatal · Field investigation · Final report · Mar 27, 2003 · N175PA · Destroyed
  > The partial loss of engine power due to erratic fuel flow metering to the engine resulting from the single point failure of the PLA potentiometer in the hydro-mechanical fuel control unit. A contributing factor was the lack of suitable terrain to execute a…
- [NTSB MIA03IA062](https://openairdocs.org/ntsb/MIA03IA062.md): Cessna 500 · Fort Lauderdale, FL · Incident · No injuries · Incident investigation · Final report · Feb 14, 2003 · N891CA · Minor damage
  > Inadequate quality control following overhaul of the high-pressure compressor (HPC) impeller by other maintenance personnel that resulted in a machining groove on the aft face of the HPC impeller being undetected, which resulted in a fatigue fracture and an…
- [NTSB SEA03FA026](https://openairdocs.org/ntsb/SEA03FA026.md): Cessna 172K · Gig Harbor, WA · Accident · No injuries · Field investigation · Final report · Jan 14, 2003 · N1909V · Substantial damage
  > The loss of engine power in the climb due to the fracture of the number seven engine crankshaft cheek due to the propagation of a fatigue crack initiation point. Factors include a vehicle pulling onto the road that the pilot selected for his forced emergency…
- [NTSB LAX03LA059](https://openairdocs.org/ntsb/LAX03LA059.md): Farmer R B DA5-A · Apple Valley, CA · Accident · Serious injuries · Limited investigation · Final report · Jan 4, 2003 · N7053U · Substantial damage
  > the detonation of the number 1 and 3 cylinders and the subsequent over temperature of those cylinders and their corresponding pistons.

## 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 year(c."eventDate") = 2003
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=352&year=2003

---
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.