# SDR DALA1105856308

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2011
- Submitted: January 25, 2011
- Operation: Air carrier
- Aircraft: N668US
- Make and model: Boeing 747451
- Aircraft serial: 24223
- Aircraft time: 88,742 hours, 10,970 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Frame
- Condition: Cracked
- Location: L4 Doorway
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1105856308

## Discrepancy

NR 4, LT MAIN ENTRY DOOR AFT FRAME LOWER END CRACK BS 1710-1720 WL 200 L=1".  REPAIR COMPLETED IAW SRM 52-10-02.  REPAIR 2 P201, REV 78, FIG 201.  REQUIRE REPEAT INSPECTIONS.  INTERNAL AND EXTERNAL DETAILED VISUAL INSP FOR REPAIR DOUBLER AND  ADJACENT STRUCTURE IN THE REPAIR AREA INSP THRESHOLD 15000 DOOR FLT CYCLES, INTERVAL: 3000 FLT CYCLES.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.