Zone

Crash of a Swearingen SA227AC Metro III in Andahuaylas

Date & Time: Nov 13, 2010 at 1602 LT
Type of aircraft:
Operator:
Registration:
N781C
Survivors:
Yes
Schedule:
Huaraz - Andahuaylas
MSN:
AC-535
YOM:
1982
Country:
Crew on board:
2
Crew fatalities:
Pax on board:
17
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
6301
Captain / Total hours on type:
2615.00
Copilot / Total flying hours:
3253
Copilot / Total hours on type:
737
Aircraft flight hours:
27889
Aircraft flight cycles:
37163
Circumstances:
Following an uneventful flight, aircraft approached Andahuaylas Airport and landed on runway 03. After touch down, while decelerating to 40 knots, aircraft veered to the left. Crew counteracted but aircraft continued to the left, went through the grass and eventually down a four meters high embankment before coming to rest. While all 19 occupants were uninjured, aircraft was damaged beyond repair.
Probable cause:
It appears that the loss of directional control after touch down was caused by the failure of the brake system.
Aircraft had already several technical problems with its brake systems previous to the flight and maintenance was performed by technicians the day before the accident. For unknown reasons, the problem was resolved but no feedback or troubleshooting was performed on part of the technicians or the crew.
Captain was aware of the problem and took the decision to complete the flight despite the risk the problem may persist or happen again.
Final Report: