Accident Saab 340B N349SB, Tuesday 1 February 1994
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Date:Tuesday 1 February 1994
Time:21:40
Type:Silhouette image of generic SF34 model; specific model in this crash may look slightly different    
Saab 340B
Owner/operator:American Eagle, opb Simmons Airlines
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
Other fatalities:0
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 captain’s movement of the power levers below flight idle in flight, the inadequate certification requirements and consequent design of the airplane’s 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:
cover
  
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:

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