# SDR 96ZZZM552

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N727DH](https://openairdocs.org/aircraft/N727DH), registered now
- Make and model: Boeing 727228
- Aircraft serial: 20204
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corrosion
- Location: Ram Air Plenum
- Part time: 45,615 hours
- 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/96ZZZM552

## Discrepancy

DURING D-CHECK, FOUND CORROSION ON UPPER SURFACE OF LEFT RAM AIR PLENUM ABOVE SECONDARY HEAT EXCHANGER.  REMOVED CORROSION AS PER SRM 51-10-6.  REMOVED FASTENERS PER SRM 51-30-2.  NDT CHECK LOSS MATERIAL .090.  ALODINED AND PRIMED PER SRM 51-10-2.  FABRICATED TWO EXTERNAL DOUBLER AS PER SRM 57-30-3 FIG 8 2024-T3 3.75 BY 13 INCH .080 AND INSTALLED FASTENERS.

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