# SDR IPXA10B61891

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2010
- Submitted: August 16, 2010
- Operation: Air carrier
- Aircraft: [N581UP](https://openairdocs.org/aircraft/N581UP), registered now
- Make and model: Boeing 747-4R7F
- Registry model: [Boeing 747-4R7F](https://openairdocs.org/model/boeing-747-4r7f) (OpenAirDocs)
- Aircraft serial: 25866
- Aircraft time: 82,754 hours, 14,396 cycles
- Engine: Ge CF680C2B1F
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Bs 2598 Bulkhead
- 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/IPXA10B61891

## Discrepancy

INSPECTION TYPE:C EMP- TAIL COMPT STA 2598 LT BHD INNER CHORD CRACK AT LWR TORSION BOX AREA AS MARKED.  (CHORD CRACK LENGTH 0.915"), ( WEB CRACK LENGTH 0.030" ) CHORD & WEB REPAIRED IAW HX RS R53-80-36775, REV A AND EO 747- 5310-38966-A, ORG MAT'L:BAC1505-100859, 7075T6(INNER CHORD), CLAD 7075T6-0.050" BONDED WEB ASSY CHORD CUTOUT SIZE: 0.99" X 0.863", WEB FINAL HOLE SIZE: 0.309", THIS IS CLASSIFIED AS A MAJOR REPAIR THE REPAIR TIME LIMITED TO 17396 FLT CYC PENDING A (DTA).

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