# NTSB SEA06CA087: Cessna 310R, N954EA, Billings, MT, April 19, 2006

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: April 19, 2006, 10:00 local (16:00 UTC)
- Place: Billings, MT
- Coordinates: 45.807777, -108.542778
- Nearby events: https://openairdocs.org/map.md?lat=45.8078&lon=-108.5428&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report October 3, 2006
- Report: Approved by Office Director
- NTSB case key (mKey): 63587
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA06CA087
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/63587/pdf
- Page: https://openairdocs.org/ntsb/SEA06CA087

## Probable cause

Collapse of the right main landing gear during the landing roll for an undetermined reason.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Main gear collapsed, landing - roll
  - reason for occurrence undetermined (cause)

## Analysis

According to the pilot, the approach to landing was normal, and she verified that the landing gear were down and locked.  Following a normal touchdown, during the landing roll out, the right main gear collapsed.  An FAA inspector examined the airplane and reported that the right aileron was damaged and required replacement.  The reason for the collapse of the landing gear was not determined.

## Factual narrative

On April 19, 2006, approximately 1000 mountain daylight time, a Cessna 310R, N954EA, sustained substantial damage when the right main landing gear collapsed during the landing roll on runway 28R at Billings Logan International Airport, Billings, Montana.  The commercial pilot and the two passengers were not injured.  The airplane was registered to and operated by Exec Air Montana Inc. of Helena, Montana.  Visual meteorological conditions prevailed and a company visual flight rules flight plan was filed for the 14 CFR Part 135 flight.  The flight originated from Helena, approximately 0900.

According to the pilot, the approach to landing was normal, and she verified that all three landing gear were down and locked.  Following a normal touch down, during the landing roll out, the right main gear collapsed.  An FAA inspector examined the airplane and reported that the right aileron was damaged and required replacement.  The reason for the collapse of the landing gear was not determined.

## Aircraft

- Registration: [N954EA](https://openairdocs.org/deregistered/N954EA-2012-08-10), registration cancelled 2012-08-10, S/N 310R0661, built 1976 (OpenAirDocs)
- Reported make and model: Cessna 310R
- Registry model: [Cessna 310R](https://openairdocs.org/model/cessna-310r) (registry code 2074245) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 310R0661
- Engines: Teledyne Continental IO-520-M reciprocating; Teledyne Continental IO-520-M reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Exec Air Montana Inc.
- Airworthiness certificate: Standard, Normal
- Departed: HLN, Helena, MT
- Destination: BIL, Billings, MT
- Flight plan: Company VFR
- Airport: BIL, Billings Logan International, runway 28R

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2; flight hours: 2,235 total, 468 in this make and model, 270 in the last 90 days, 90 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20060419006259A](https://openairdocs.org/incident/20060419006259A), Apr 19, 2006: Cessna 310R, Billings, MT, Substantial damage. (-23) All aircraft indications were normal for gear down and locked prior to landing. Shortly after touchdown, right-hand main landing gear (r/h MLG) collapsed…

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.

---
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.