# Bell TH-57A

- Type: Aircraft model (FAA registry)
- Registry code: 1180821
- Manufacturer (registry): BELL
- Model: TH-57A
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Turbo-shaft
- Seats: 5
- Weight class: Up to 12,499 lb
- Certification: Type certificated
- Registered aircraft: 0
- Page: https://openairdocs.org/model/bell-th-57a

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft

None registered with this model now.

## NTSB investigations

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## Service difficulty reports (8)

As reported by operators and repair stations, by the model named in the report.

- [SDR 2023FA0000206](https://openairdocs.org/sdr/2023FA0000206), Jul 24, 2019: REDUCER. FAILED. ON 24 JUL 2019, A TH-57C HELICOPTER EXPERIENCED OIL PRESSURE FLUCTUATIONS IN FLIGHT THAT WARRANTED THE DECISION TO LAND THE AIRCRAFT AS SOON AS POSSIBLE. ONCE O
- [SDR HEEA080433](https://openairdocs.org/sdr/HEEA080433), Jul 11, 2002: SHAFT. WORN. SHAFT HAS SPALLING AND STEP WEAR ON GEAR TEETH BEYOND NORMAL WEAR.
- [SDR HEEA080404](https://openairdocs.org/sdr/HEEA080404), Jul 8, 2002: TIE BOLT. CORRODED. ENGINE REMOVED DUE TO EXCEEDING TOT ON START. UPON INSPECTION OF TURBINE PARTS NOTED EXCESSIVE PITTING ON TIE BOLT MUTE.
- [SDR HEEA079374](https://openairdocs.org/sdr/HEEA079374), May 30, 2002: NOZZLE. FOD. TURBINE NOZZLE HAS FOREIGN MATERIAL ON AFT SIDE OF DIAPHRAGM.
- [SDR HEEA079373](https://openairdocs.org/sdr/HEEA079373), May 30, 2002: NOZZLE. DAMAGED. ENGINE TURBINE NOZZLE HAS STRIPPED THREADS AT GP SUPPORT MATING SURFACE.
- [SDR HEEA078481](https://openairdocs.org/sdr/HEEA078481), Mar 29, 2002: BEARING RACE. SPALLED. TURBINE WAS REMOVED DUE TO METAL IN OIL. INSPECTION REVEALED SPALLING ON INNER RACE COUPLING BEARING RACE. INSTALLED NEW INNER RACE COUPLING.
- [SDR HEEA078253](https://openairdocs.org/sdr/HEEA078253), Mar 22, 2002: NOZZLE. FAILED. TURBINE REMOVED FOR OVERHAUL. LOW AREA FLOW 10.17 CAUSE LOW POWER ON TEST CELL. POWER WENT FROM -5.3 TO -7.0. OVERHAULED NOZZLE, INSTALLED AND POWER WENT TO -3.
- [SDR HEEA077555](https://openairdocs.org/sdr/HEEA077555), Jan 11, 2002: COUPLING. MISMARKED. NEW PART RECEIVED WITH IMPROPER PART NUMBER 6850832 ENGRAVED ON PART.

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