# SDR DALA1217886304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2012
- Submitted: May 14, 2012
- Operation: Air carrier
- Aircraft: N664US
- Make and model: Boeing 747451
- Aircraft serial: 23819
- Aircraft time: 94,936 hours, 11,946 cycles
- System (JASC): [5240 · Service Doors](https://openairdocs.org/jasc/5240)
- Part: Skin
- Condition: Cracked
- Location: R3 Door
- 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/DALA1217886304

## Discrepancy

DURING HFEC SURFACE AND OPEN HOLE INSPECTION AT LT NR 3 DOOR UPPER AFT CORNER FOUND CRACK ON SKIN SURFACE AND ONE HOLE CRACK INDICATION.  INDICATE CRACK CLASSIFICATION AS SMALL AND MEDIUM.  REPAIRED PER PRI 501583-14.

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