# SDR SWAA2023092803946

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2023
- Submitted: September 28, 2023
- Operation: Air carrier
- Aircraft: [N478WN](https://openairdocs.org/aircraft/N478WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33989
- Aircraft time: 63,708 hours, 37,940 cycles
- System (JASC): [5415 · Nacelle/Pylon, Attach Fittings](https://openairdocs.org/jasc/5415)
- Part: Fitting
- Part number: UNKNOWN
- Condition: Damaged
- Location: Zn 400 Nacelle/P
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023092803946

## Discrepancy

#2 ENGINE AFT PYLON FWD INBD FITTING ELONGATED.<[01] REAMED ELONGATED HOLE TO .5625' PER SRM 51-40-05.;[02] MEASURED DAMAGE TO THE FACE OF THE FITTING CAUSED BY THE BUSHING HAT WORKING TO BE .019? DEEP. FOUND NO APPLICABLE SRM LIMITS. REMOVED DAMAGE PER SRM 51-10-02 AND CONTACTED ENGINEERING;[03] PERFORMED HOLE PROBE INSPECTION PER 737 NDT 51-00-00 PROCEDURE 16. NO FAULTS NOTED.;[04] PERFORMED HFEC SURFACE INSPECTION PER 737 NDT 51-00-00 PROCEDURE 23. NO FAULTS NOTED.;[05] NO: 2 ENGINE AFT PYLON FWD INBD FITTING ELONGATED HOLE REWORKED ON FAULT NO: TTG8Q00NLZ60;[06] NO: 2 ENGINE AFT PYLON FWD INBD FITTING ELONGATED HOLE REWORKED ON FAULT NO: TTG8Q00NLZ60

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