N90NM

Substantial
None

Beech BE-90S/N: LJ404

Accident Details

Date
Sunday, March 25, 2007
NTSB Number
ATL07LA064
Location
Augusta, GA
Event ID
20070411X00392
Coordinates
33.368610, -81.958610
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
3
Total Aboard
3

Probable Cause and Findings

A total failure of the electrical system for undetermined reasons, which resulted in the pilot's inability to ensure that the landing gear was down and locked.

Aircraft Information

Registration
N90NM
Make
BEECH
Serial Number
LJ404
Engine Type
Turbo-shaft
Year Built
1968
Model / ICAO
BE-90BE9L
Aircraft Type
Fixed Wing Multi Engine
No. of Engines
2

Registered Owner (Historical)

Name
DYNAMIC AVIATION GROUP INC
Address
PO BOX 7
Status
Deregistered
City
BRIDGEWATER
State / Zip Code
VA 22812-0007
Country
United States

Analysis

On March 25, 2007, at 1400 eastern daylight time, a Beech BE-90, N90NM, registered to J.A. Air LLC, and operating as a Title 14 Code of Federal Regulations Part 91 business flight, collapsed the left and right main landing gears during landing, at Augusta Regional Airport at Bush Field (AGS), in Augusta, Georgia. Visual meteorological conditions prevailed and an Instrument Flight Rules flight plan was filed. The airplane received substantial damage. The commercial pilot and two passengers reported no injuries. The flight originated from DeKalb-Peachtree Airport (PDK) in Atlanta, Georgia, on March 25, 2007, about 1300.

According to the pilot, shortly after takeoff from PDK, the left "generator light" on the annunciation panel illuminated. He attempted a reset but was unsuccessful. Shortly after that, the right generator and battery failed, possibly from a massive electrical short. As the flight progressed, various instruments failed, including radio and navigational instruments. The pilot diverted to AGS, and attempted to manually lower the landing gear into the down and locked position, but was only able to get the gear to partially extend. He had no way of verifying if the gear was down and locked. With the power out the landing gear position lights in the cockpit would not illuminate. The pilot warned the passengers that he was going to do a gear-up landing. Upon landing the nose gear stayed extended, but both main gears collapsed. The pilot stated that he pulled all the breakers, shut off the fuel, and feathered the props before touching down. On touchdown, the airplane slid about 3,000 feet before coming to a stop. He and the passengers egressed without injury. Damage to the airplane consisted of belly skin and the left wing rear spar.

Examination of the airplane by a Federal Aviation Administration inspector found that the airplane had experienced a total electrical failure. Both the left and right generators had failed with both generators exhibiting thermal damage. No further examination was performed.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ATL07LA064