# SDR AALA971802

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N716AA
- Make and model: Boeing 727227
- Aircraft serial: 20608
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- Location: Bs 820
- 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/AALA971802

## Discrepancy

TUL - LOWER WING SKIN HAS LARGE AREA OF CORROSION UNDER RT SECONDARY HEAT EXCHANGER JUST AFT OF SPLICE.  INSTALLED REPAIR DOUBLER PER SRM 57-30-3.  APPLY SEALANT TO FASTENER HEADS AND TAILS.  TST:  70,323.2 HOURS.  CYCLES, 48,507.  (X)

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