# SDR U2RA2024090800051

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2024
- Submitted: September 8, 2024
- Operation: Air carrier
- Aircraft: [N756CA](https://openairdocs.org/aircraft/N756CA), registered now
- Make and model: Boeing 747412
- Aircraft serial: 26547
- Aircraft time: 94,876 hours, 15,420 cycles
- Engine: Pwa PW4056
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Frame
- Part number: 65B018494749
- Condition: Out Of Limits
- Location: Zone 100
- Part time: 94,876 hours, 15,420 cycles
- 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/U2RA2024090800051

## Discrepancy

"REF HAECO XMN (TX9Y778Y) NRC#:KUL9555 - AN EXISTING OVERSIZED HOLE WAS FOUND ON FRAME STRUCTURE AT STA 2231, STR-25L DURING SB 747-53A2450 REV. 08 INSPECTION. THE DIAMETER (0.309"") IS GREATER THAN SB 747-53A2450 REV. 08 ALLOWED (MAX 0.2817"")."

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