# SDR DALA2021031501446

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2021
- Submitted: March 15, 2021
- Operation: Air carrier
- Aircraft: [N707TW](https://openairdocs.org/aircraft/N707TW), registered now
- Make and model: Boeing 757-2Q8
- Registry model: [Boeing 757-2Q8](https://openairdocs.org/model/boeing-757-2q8) (OpenAirDocs)
- Aircraft serial: 27625
- Aircraft time: 87,458 hours, 23,300 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021031501446

## Discrepancy

DURING HCK MAINTENANCE FOUND A CRACK LOCATED AT FRAME WEB IN INBD UPPER FASTENER HOLE AT 4'O CLOCK POS IWTH LENGTH = 0.024" APROX AND TWO CRACKS LOCATED AT FRAME & OUTER CHORD IN LOWER OUTBD FASTENER HOLE AT 2'CLOCK POSTION WITH LENGTH = 0.040" APROX AND 8'CLOCK POSITION WITH LENGTH 0.048" APROX, AT BS 1640 FUSELAGE FRAME COMMON TO THE INTERCOSTAL TEE CLIP LH SIDE. CW ERA 59055514. (LP 1754942)

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