# SDR UIEA2019080204927

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2019
- Submitted: August 2, 2019
- Operation: Air carrier
- Aircraft: [N473MC](https://openairdocs.org/aircraft/N473MC), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 27174
- Aircraft time: 104,274 hours, 18,561 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Retainer
- Condition: Cracked
- Location: Lt Mlg Ww
- 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/UIEA2019080204927

## Discrepancy

L/H WLG W/W FWD BULKHEAD, LBL 40, LWR SEAL RETAINER FOUND CRACKED.(<P>L/H WLG W/W FWD BULKHEAD STA 1233, LBL 40, UNDERWING REAR SPAR VAPOR BARRIER SEAL RETAINER CRACK AREAS REPAIRED IAW ATLAS EO 4453B722, PART 1. </P>)

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