# SDR DHL9770116C

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N701DH](https://openairdocs.org/aircraft/N701DH), registered now
- Make and model: Boeing 727-30C
- Registry model: [Boeing 727-30C](https://openairdocs.org/model/boeing-727-30c) (OpenAirDocs)
- Aircraft serial: 19011
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Bs 740
- 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/DHL9770116C

## Discrepancy

DURING C-CHECK, SURFACE CORROSION ON SKIN BS 740 STR 9 RIGHT.  FOUND CORROSION WAS BEYOND SRM LIMITS.  CUT OUT CORRODED AREA 4.125 BY 4.875 PER SRM 51-10-1 IN FORWARD PANEL AT STR 9RT.  INSTALLED EXTERNAL DOUBLER AT BS 740 STR 9RT AS PER SRM 53-30-3 FIG 3A.  DOUBLER SIZE 4.5 BY 5, N/R 3518.

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