# SDR UPS06446362

- 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: 65B01713501
- Condition: Cracked
- Location: Bs 400
- 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/UPS06446362

## Discrepancy

INSPECTION TYPE:C U/D BS400 STR10L FRAME O/B AREA FOUND CRACK. CRACK LENGTH 1/2"     U/D BS400 STR9L TO STR10AL FRAME REPAIRED AS PER RS R53-10-35442 CONTINUED INSPECTIONS REQUIRE WHILE PERFORMING SB 747-53A2265 INSPECTIONS & REPLACEMENT WITH SB747-53-2272 AT OR BEFORE 20000 FLIGHT CYCLES REF UPS EO B747-5310-23830-A.

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