# SDR UPS06446625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2006
- Submitted: April 5, 2006
- Operation: Air carrier
- Aircraft: N681UP
- Make and model: Boeing 747121
- Aircraft serial: 19661
- Aircraft time: 106,939 hours, 27,146 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Frame
- Condition: Cracked
- Location: Bs 340
- 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/UPS06446625

## Discrepancy

RT BS 340 UPPER DECK FLOORBEAM AT FRAME CONNECTION AREA 1 FASTENER HOLE CRACK AT FRAME, CRACK LENGTH 1/16".  U/D BS 340 FLOORBEAM ATT FRAME REPAIRED AS PER HX RS# R53-12-35437, REF NRC# RH61151 FOR WORKING DETAIL AT BTN STR 10AR - 13AR AREA UPON ACCUMULATION OF 10000 FLT CYC PORTFORM A DETAIL VISUAL INSPECTION OF THE FWD AND AFT SIDES OF THE FRAME IN THE REPAIR AREA IS REQUIRE THAT IS TO REPEAT EVERY 3000 CYC, REF UPS EO NR B747-5310-24059-A.

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