# SDR UIEA2018092802117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2018
- Submitted: October 1, 2018
- Operation: Air carrier
- Aircraft: [N780BA](https://openairdocs.org/aircraft/N780BA), registered now
- Make and model: Boeing 747409
- Aircraft serial: 24310
- Aircraft time: 83,219 hours, 15,893 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- 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/UIEA2018092802117

## Discrepancy

CRACK ON NR 5, NR 9, NR 11 OF LT LONGERON EXTENSION FIG WHEN PFM SB 747-53A2390. RPL WITH NEW LONGERON EXTENTION FIG IAW EI T2018 A53M-5143 REV 1 AND EI T20177A07M-4573 REV1 AND DWG 65B15255 SHEET 2 REV B AND DWG 65B15254 SHEET 3 REV D AND SRM 51-40-04 REV 40. OPS CHECK NORMAL.

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