# SDR 97FDEA00611

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N144FE](https://openairdocs.org/aircraft/N144FE), registered now
- Make and model: Boeing 727-21C
- Registry model: [Boeing 727-21C](https://openairdocs.org/model/boeing-727-21c) (OpenAirDocs)
- Aircraft serial: 19137
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Part number: 65185371
- Condition: Corroded
- Location: Bs 870
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97FDEA00611

## Discrepancy

CORROSION (C57-174-01) ON BS 870 REAR SPAR LOWER CHORD, LBL 40 TO 45, WL 138.  *S/D*  REMOVED CORROSION, BLENDED ON BS 870 REAR SPAR LOWER CHORD.  FOUND CHORD TO BE OUT OF LIMITS PER FED SRM 53-10-1.  REMOVED AND REPLACED SPAR CHORD PER EA NR 7-5710-36144.

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