# SDR UPS06446372

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2006
- Submitted: March 3, 2006
- Operation: Air carrier
- Aircraft: N522UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 21936
- Aircraft time: 72,217 hours, 16,929 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: 65B01717517
- Condition: Cracked
- Location: Bs 480
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS06446372

## Discrepancy

BS480 STR 11L FOUND O/B AREA FOUND CRACK.  CRACK LENGTH 7/8" TO 1".  BS 480 S10L AND ABOVE U/B FLOORBEAM AREA FRAME REPAIRED AS PER RS R53-10-35447 CONTINUED INSPECTION REQUIRE WHILE PERFORMING SB747-53A2265 INSPECTIONS AND REPLACEMENT WITH SB747-53-2272 MOD REF UPS RO B747-23852-A.

---
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.