# SDR CALA9601801

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N33021
- Make and model: Boeing 747243B
- Aircraft serial: 20520
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- Location: Ws 411-420
- 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/CALA9601801

## Discrepancy

INSPECTION FOUND RT WING UPPER SURFACE OF SKIN CORRODED ABOVE REAR SPAR AT WS 411 TO 420.  THE AREA WAS REPAIRED IAW ECRA 5720-01551.

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