# SDR UPS00433248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2000
- Submitted: July 12, 2000
- Operation: Air carrier
- Aircraft: N521UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21944
- Aircraft time: 62,800 hours, 15,449 cycles
- 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/UPS00433248

## Discrepancy

INSPECTION TYPE:C, FUSELAGE FRAME WEB IS  CRACKED AT CUTOUT  FOR STRINGER AT BS 300, STR 13 RT.  REPAIRED CRACKED FRAME IAW SRM 51-10-06 AND 51-30-02 AND QUERY NOTE 31/200.  STOP DRILLED CRACKS AND DOUBLER, INSTALLED ON FWD FACE OF FRAME APPROVED 8110 ISSUED FOR THIS TASK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.