# SDR F3LA200300188

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2003
- Submitted: December 24, 2003
- Operation: Air carrier
- Aircraft: [N306FL](https://openairdocs.org/aircraft/N306FL), registered now
- Make and model: Boeing 737-36N
- Registry model: [Boeing 737-36N](https://openairdocs.org/model/boeing-737-36n) (OpenAirDocs)
- Aircraft serial: 28563
- Aircraft time: 21,103 hours, 9,980 cycles
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Flap Track
- Condition: Corroded
- Location: T/E Flap
- 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/F3LA200300188

## Discrepancy

DURING C-7 CHECK, INSPECTION REPORTED CORROSION ON NR 7 OTBD FLAP TRACK ASSY.  REMOVED EXISTING BUSHINGS TO EXPOSE ALL SURFACES TO INSPECTION.  INSPECTED FLAP TRACK PER OHM 57-53-15.  MACHINED THE HOLE FORWARD OF BUSHING NR 60 PER SOPM 20-10-01 AND SOPM 20-10-02 TO REMOVE CORROSION.  PERFORMED ALL POST MACHINING REQUIREMENTS PER SOPM 20-10-02.  PERFORMED MAGNETIC PARTICLE INSPECTION OF TRACK PER SOPM 20-20-01.  SHOT AND/OR FLAP PEENED THE REWORKED BORE PER SOPM 20-10-03.  STYLUS CADMIUM PLATED THE BORE PER SOPM 20-42-10.  REFINISHED PER OHN 57-53-15.

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