# SDR 2001UALA00617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2001
- Submitted: May 16, 2001
- Operation: Air carrier
- Aircraft: N7456U
- Make and model: Boeing 727222
- Aircraft serial: 21910
- Aircraft time: 61,500 hours, 35,418 cycles
- Engine: Pwa JT8D15
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Fuselage
- 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/2001UALA00617

## Discrepancy

FUSELAGE FRAME AT BS 420 IS CRACKED ALONG THE RADIUS BETWEEN STRINGER 20R AND 21R..  INSTALLED EXTERNAL DOUBLER PER SRM 53-30-3 AND 53-10-2 DUE TO SKIN CRACKING

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