# SDR 2006FA0000684

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2006
- Submitted: July 17, 2006
- Operation: General aviation
- Aircraft: [N7765U](https://openairdocs.org/aircraft/N7765U), registered now
- Make and model: Cessna 150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (OpenAirDocs)
- Aircraft serial: 15077837
- Aircraft time: 5,510 hours
- Engine: Lyc O320E2D
- System (JASC): [5551 · Horizontal Stabilizer, Attach Fittings](https://openairdocs.org/jasc/5551)
- Part: Fitting
- Part number: 04320052
- Condition: Misinstalled
- Location: Rt Stab
- Part time: 5,510 hours
- 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/2006FA0000684

## Discrepancy

ON PREFLIGHT INSP, APPLIED A +/- 5 LB UP AND DOWN FORCE ON RT STABILIZER TIP, HEARD A GRUNTING SOUND.   FURTHER INVESTIGATION REVEALED A SMALL RELATIVE MOTION BETWEEN STABILIZER  AFT FITTING, 0432005-2, AND FUSELAGE.   REMOVING NUT OPENED A 0.020 INCH AIR GAP BETWEEN FITTING AND FUSELAGE. CLEANING GAP WITH A CLOTH DIDN’T SHOW ANY METAL PARTICLES. THE FIX WAS TO FABRICATE A 0.020 INCH SHIM. THIS FITTING IS A VERY  RIGID CHANNEL SUCH THAT IF THERE WAS AN AIR GAP IT MAY NOT CLAMP ON TO THE FUSELAGE FITTING HARD ENOUGH WITH BOLT TORQUE. THIS MAY NOT BE A DEFECTIVE PART, JUST TOLERANCE STACK UP.  LEFT SIDE FITTING WAS CHECKED.  IT REQUIRED A 0.010 INCH SHIM.  THESE 2 AFT MNT POINTS ARE LOAD CYCLED MORE FREQUENTLY.

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