# SDR UIEA2022030300187

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2022
- Submitted: March 3, 2022
- Operation: Air carrier
- Aircraft: [N718BA](https://openairdocs.org/aircraft/N718BA), registered now
- Make and model: Boeing 747-4H6
- Registry model: [Boeing 747-4H6](https://openairdocs.org/model/boeing-747-4h6) (OpenAirDocs)
- Aircraft serial: 27042
- Aircraft time: 81,455 hours, 11,430 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Skin
- Condition: Corroded
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2022030300187

## Discrepancy

PITTING CORROSION - SKIN, NO. 1 PYLON AFT STRUT FAIRING FWD BULKHEAD(<P>BLENDED OUT THE DAMAGED AREA IAW SRM 51-10-02 REV. 50. PERFORM NDT INSPECTION, REFER TO JOB CARD ATTACHING SHEET NO. 0305381. MEASURED REWORK AREA DEPTH = 0.001" LENGTH = 1", WIDTH = 0.8" IT WAS ALLOWABLE IAW SRM 54-50-02-1A-1 FIG 101 DETAIL IV REV. 50. APPLY PROTECTIVE COATING AT REWORK AREA IAW SRM 51-20-01 REV 50. JOB COMPLETED AND CONDITION CHECK NORMAL.</P>)

---
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.