# Accident 20040925026429A: Hughes 269C1, Burbank, CA, September 25, 2004

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 25, 2004, 15:49 local time
- Place: Burbank, CA
- Airport: Burbank-Glendale-Pasadena Airp
- Damage: Substantial damage
- Phase of flight: Pwr On Vertical Ldng/Rtrcrft
- Operating rules: General operating rules (Part 91)
- Operator: G31A
- Location: 34.2008° N, 118.3586° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=34.2008&lon=-118.3586&mi=10
- Aircraft: N61413, a cancelled registration (https://openairdocs.org/deregistered/N61413-2006-08-30) (OpenAirDocs)
- Registry model: Schweizer 269C-1 (registry code 8059504, https://openairdocs.org/model/schweizer-269c-1) (OpenAirDocs)
- Registry engine: Lycoming HO-360 series (registry code 41513, https://openairdocs.org/engine/lycoming-ho-360-series) (OpenAirDocs)
- Reported make and model: HUGHES 269C1
- Reported engine: LYC HIO360*
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 216 total, 121 in this make and model, 32 in the last 90 days
- NTSB investigation: [NTSB LAX04LA331](https://openairdocs.org/ntsb/LAX04LA331) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040925026429A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) PRELIMINARY INVESTIGATION INDICATES THAT STUDENT PILOT LANDED HARD AND INDUCED GROUND RESONANCE (VIBRATION), AND INSTRUCTOR WAS TOO LATE FOR CORRECTIVE ACTION. HELICOPTER WAS DESTROYED. LANDING GEAR DAMPNERS WERE INSPECTED BY MANUFACTURER. THE FRONT DAMPNERS WERE FOUND TO BE IMPROPERLY SERVICED. THE FRONT DAMPNERS WERE LAST SERVICED BY HUMMINGBIRD ROTORWING SERVICES, INC. ON 01/12/2004, TT 5750.1. (-23 AMENDMENT) CONTRIBUTING FACTORS: HIGH AMBIENT TEMPERATURE OF 85 DEGREES CAUSING WEAKENING OF M/R DAMPNERS. WAITING FOR REPORT FROM MANUFACTURER.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX04LA331](https://openairdocs.org/ntsb/LAX04LA331), Sep 25, 2004: Schweizer 269C-1 (N61413), Burbank, CA, substantial damage. Probable cause: the failure of maintenance personnel to correctly service the forward landing gear strut dampers in accordance with the manufacturer's maintenance instructions.

## Other reports on N61413 (1)

Matched to the same aircraft by N-number and date.

- [Incident 20020116000529I](https://openairdocs.org/incident/20020116000529I), Jan 16, 2002: Hughes 269C1 (N61413), Burbank, CA. (-23) Pilot performed a precautionary landing due to a low frequency vibration coming from the cyclic or main rotor. N61413 was inspected and a chadwick…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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