# SDR 20000505AP036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2000
- Submitted: May 3, 2000
- Operation: Air carrier
- Aircraft: [N516MC](https://openairdocs.org/aircraft/N516MC), registered now
- Make and model: Boeing 747243B
- Aircraft serial: 22507
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Corroded
- Location: Wing Box
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000505AP036

## Discrepancy

FOUND CORROSION ON WING CTR SECTION REAR SPAR RBL 99, COMMON TO REAR BULKHEAD FITTING AND INBOARD WEB OF LEG TO TWO BOLT HOLES WHILE PERFORMING SB 747-57-2263.  CLEANED, TREATED, MEASURED CORROSION.  APPLIED FINISH.  ALL WITHIN ACCEPTABLE LIMITS.  (M)

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