Cessna 421C N805DC
27 March 2013 · Amarillo, Texas, United States · No injuries
Summary
On 27 March 2013 at about 15:45 local time, a Cessna 421C registered N805DC was involved in an accident near Amarillo, Texas, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 15:45
- Classification
- Accident
- Location
- Amarillo, Texas, United States
- Nearest airport
- River Falls Airport (81XA)
- Coordinates
- 35.0803, -101.7564
- Aircraft
- Cessna 421C
- Registration
- N805DC
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Amarillo → Amarillo
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- CEN13LA208
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
Maintenance personnel's failure to detect the misadjustment of the left landing gear actuator's switch after recent maintenance, which prevented the landing gear from locking in the extended position and resulted in the landing gear collapsing during landing.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The airplane's left landing gear collapsed during landing. Postaccident examination of the landing gear system revealed that the down-lock indicator switch on the left landing gear actuator had been turned about 1/2 turn farther inward than specified in the actuator manufacturer's assembly instructions. This incorrect adjustment of the left landing gear indicator switch resulted in the switch's plunger interfering with the actuator's internal locking mechanism, which prevented the actuator from locking in the down position. It also resulted in the left landing gear position indicator showing a down-and-locked position regardless of the gear's actual position. Maintenance records indicated that both main landing gear actuators were resealed at the annual inspection about 1 month before the accident. The maintenance manual included procedures for electrically testing the landing gear actuator switch for proper indication of the unlocked and locked conditions. If maintenance personnel had conducted the testing during the recent maintenance, the misadjusted switch likely would have been discovered.
Quoted verbatim from the NTSB record.
Other Cessna 421 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 1 May 2013 | Cessna 421A | Oakland, California, United States | - | No injuries | - |
| 24 Sep 2013 | Cessna 421-C | Colombier-Saugnieu, France | - | Fatal | 4 |
| 16 May 2013 | Cessna 421C | Floriston, California, United States | - | Fatal | 1 |
| 27 Aug 2013 | Cessna 421C | Paris, Illinois, United States | RSB Aviation, Inc. | Fatal | 1 |
| 27 Nov 2012 | Cessna 421C | Wells, Texas, United States | - | Fatal | 1 |
| 8 Dec 2012 | Cessna 421C | Lake Worth, Florida, United States | Subway Development of Southeast Florida, Inc. | Fatal | 1 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 25 Jul 2013 | Piper PA-30 | Amarillo, Texas, United States | - | Fatal | 1 |
| 7 Sep 2013 | Barrow ROSE PARRAKEET | Castroville, Texas, United States | Timothy Barrow | No injuries | - |
| 8 Feb 2013 | North American-Medore SNJ-4 | Garden City, Texas, United States | BP Residential LLC | No injuries | - |
| 8 Jun 2013 | Eurocopter AS 350 B3 | Grand Prairie, Texas, United States | CFS Air LLC | Minor injuries | - |
| 19 Apr 2013 | Piper PA-32-301 | Paris, Texas, United States | - | No injuries | - |
| 26 Jul 2013 | Enstrom F-28A | Danbury, Texas, United States | Salaika Aviation LLC | Serious injuries | - |