# SDR P77A9700183

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 4, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N401SX](https://openairdocs.org/aircraft/N401SX), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0447
- System (JASC): [7713 · Manifold Pressure (MP) Indicating](https://openairdocs.org/jasc/7713)
- Part: Elbow
- Part number: MS208222
- Condition: No Threads
- Location: Rt Induction
- Stage of operation: NR
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P77A9700183

## Discrepancy

PILOT REPORTED DURING FLIGHT, RT MAP STARTED DROPPING.  PILOT GOT WORRIED, SHUT DOWN RT ENGINE AND FEATHERED PROPELLER.  INVESTIGATION FOUND ELBOW ON INDUCTION TUBE FOR MAP GAUGE BLEW OUT.  FIRST 5 THREADS OF ELBOW MISSING, REPLACED ELBOW.  GROUND RUNS.  ALL OPS CHECK GOOD.  (X)

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