# SDR 2026FA0000905

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2026
- Submitted: October 26, 2026
- Operation: General aviation
- Aircraft: [N8221F](https://openairdocs.org/aircraft/N8221F), registered now
- Make and model: Cessna 150F
- Registry model: [Cessna 150F](https://openairdocs.org/model/cessna-150f) (OpenAirDocs)
- Aircraft serial: 15064321
- Aircraft time: 4,851 hours
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Nut Plate
- Part number: NAS682A3
- Condition: Damaged
- Location: Zone 300
- Part time: 4,851 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000905

## Discrepancy

UPON LANDING, STUDENT FOUND LH ELEVATOR DISCONNECTED FROM HORIZONTAL STABILIZER AT THE OUTBOARD HINGE.  THE BOLT HAD WORKED ITS WAY OUT OF THE NUT PLATE AND FELL OFF INTO THE ELEVATOR TIP FAIRING.  UPON DISASSEMBLY, FOUND BOLT AND WASHER IN THE FAIRING WITH NO EXCESS WEAR NOTED.  ATTEMPTED TO THREAD IT BACK INTO THE NUT PLATE AND CONFIRMED SUSPICION THAT THE NUT PLATE HAD NO FRICTION LEFT.  THIS WAS CONFIRMED BOTH WITH THE ORIGINAL BOLT AND A BRAND NEW AN3-7A BOLT.  IT WOULD SEEM WISE TO REPLACE THE NUT PLATE WITH A CASTELLATED NUT AND COTTER PIN, AS IS USED ON THE NEWER MODELS.

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