# SDR ERKR0910032326416

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2023
- Submitted: March 11, 2023
- Operation: Air carrier
- Filed by: [Marana Aerospace Solutions Inc, repair station ERKR675D](https://openairdocs.org/faa-repair-station/ERKR675D/marana-aerospace-solutions-inc.md) (OpenAirDocs)
- Aircraft: [N701CK](https://openairdocs.org/aircraft/N701CK), registered now
- Make and model: Boeing 747-4B5F
- Registry model: [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f) (OpenAirDocs)
- Aircraft serial: 26416
- Aircraft time: 94,474 hours, 16,563 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: None
- Part number: UNK
- Part serial: NSN
- Condition: Cracked
- Location: Zone 300
- Part time: 94,474 hours, 16,563 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/ERKR0910032326416

## Discrepancy

WHILE ACCOMPLISHING SB 747-53A2427 FIG. 2 AT STA. 2598 R/H SIDE, FOUND 2EA FASTENER HOLES WITH CRACK INDICATION COMMON TO FWD INNER CHORD AND UPPER SPLICE FITTING (3RD AND 4TH HOLES FROM TOP TO BOTTOM).

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