# SDR FDEA201702230629

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2017
- Submitted: March 7, 2017
- Operation: Air carrier
- Aircraft: [N621FE](https://openairdocs.org/aircraft/N621FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48792
- Aircraft time: 55,169 hours, 13,692 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- Part number: 7479503
- Condition: Cracked
- Location: Bs 1531
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201702230629

## Discrepancy

BS 1531, LONGERON 12R, DURING AN X RAY INSPECTION, A CRACK WAS FOUND ON FWD LONGERON.   REPLACED THE LONGERON FROM BS 1511 TO 1531 IAW SRM 53-00-05-2R, FIG 201, REPAIR 1.   CLASSIFIED AS A MAJOR REPAIR IAW GMM 6-2-100.

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