Date: | Tuesday 1 February 1994 |
Time: | 21:40 |
Type: | Saab 340B |
Owner/operator: | American Eagle |
Registration: | N349SB |
MSN: | 340B-349 |
Year of manufacture: | 1993 |
Total airframe hrs: | 528 hours |
Engine model: | General Electric CT7-9B |
Fatalities: | Fatalities: 0 / Occupants: 26 |
Aircraft damage: | Substantial, repaired |
Category: | Accident |
Location: | New Roads-False River Regional Airport, LA (HZR) -
United States of America
|
Phase: | En route |
Nature: | Passenger - Scheduled |
Departure airport: | Dallas/Fort Worth International Airport, TX (DFW/KDFW) |
Destination airport: | Baton Rouge-Ryan Airport, LA (BTR/KBTR) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:While descending for landing at Baton Rouge, the captain actively moved the power levers from the flight idle gate into the beta range for undetermined reasons. The propellers and engines experienced extreme overspeed, necessitating a power-off emergency landing at night and the airplane ran off the end of a 5,000-ft runway. Although the design and certification of the power levers met existing requirements, those requirements were inadequate because they permitted a design that did not prevent movement into the beta range in flight.
PROBABLE CAUSE: "The captains movement of the power levers below flight idle in flight, the inadequate certification requirements and consequent design of the airplanes power levers that permitted them to be moved below the flight idle position into the beta range, either intentionally or inadvertently, while in flight, and the inadequate action taken to require a positive means to prevent beta operation on airplanes for which such operation is prohibited."
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NTSB/AAR-94/06 |
Status: | Investigation completed |
Duration: | 7 months |
Download report: | Final report |
|
Sources:
Air Safety Week 3 October 1994 (p. 1-2)
Aviation Week & Space Technology 7.3.94 (29/30)
Flight International
NTSB Safety Recommendations A-94-61 through -63
NTSB/AAR-94/06
Scramble 181
Location
Images:
photo (c) NTSB; New Roads-False River Regional Airport, LA (HZR); February 1994; (publicdomain)
photo (c) NTSB; New Roads-False River Regional Airport, LA (HZR); February 1994; (publicdomain)
photo (c) NTSB; New Roads-False River Regional Airport, LA (HZR); February 1994; (publicdomain)
Revision history:
Date/time | Contributor | Updates |