Country
Peru
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Crash of a Boeing 737-53C in La Paz

Date & Time: Nov 22, 2018 at 1013 LT
Type of aircraft:
Boeing 737-500
Operator:
Registration:
OB-2041-P
Flight Phase:
Landing (descent or approach)
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
Schedule:
Lima – Cuzco – La Paz
MSN:
24825/1894
YOM:
1990
Flight number:
P9331
Location:
La Paz-El Alto
La Paz
Country:
Bolivia
Region:
South America
Crew on board:
5
Crew fatalities:
Pax on board:
122
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The airplane departed Lima on a schedule service to La Paz with an intermediate stop in Cuzco, carrying 122 passengers and a crew of five. Following an uneventful flight from Cuzco-Alejandro Velasco Astete Airport, the crew completed the approach to La Paz-El Alto Airport. After touchdown, the crew started the braking procedure when both main landing gear collapsed. The airplane slid on its belly for few dozen metres before coming to rest on runway 10. All 127 occupants evacuated safely and no one was injured. It was reported that the touchdown was considered as normal. The airplane was damaged beyond repair.

Crash of a Boeing 737-3M8 in Jauja

Date & Time: Mar 28, 2017 at 1628 LT
Type of aircraft:
Boeing 737-300
Operator:
Registration:
OB-2036-P
Flight Phase:
Landing (descent or approach)
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
Schedule:
Lima - Jauja
MSN:
25071/2039
YOM:
1991
Flight number:
P9112
Location:
Jauja
Junín
Country:
Peru
Region:
South America
Crew on board:
7
Crew fatalities:
Pax on board:
142
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
13504
Copilot / Total flying hours:
7604
Aircraft flight hours:
62817
Aircraft flight cycles:
44025
Circumstances:
The aircraft departed Lima-Jorge Chavez Airport on a 20-minute flight to Jauja, carrying 142 passengers and 7 seven crew members. The approach to Jauja-Francisco Carlé was uneventful and completed in good weather conditions. Two seconds after the nose gear touched down on runway 31, the crew activated the reverse systems when he felt strong vibrations and oscillations. The aircraft started to bounce and became uncontrollable. The right main gear collapsed then the aircraft veered off runway to the right, lost its right engine and came to rest in a grassy area, bursting into flames. All 149 occupants evacuated safely and the aircraft was totally destroyed by fire.
Probable cause:
Failure of the mechanical components of the shimmy damper system in each of the main landing gears which, being out of tolerance range, did not allow the correct damping of the vibrations and lateral oscillations of the wheels after touchdown, generating sequential shimmy events in both gears and causing their collapse.
Contributing factors:
- Incorrect and probable absence of measurements on mechanical components of the 'cimmetic chain for shimmy damper operation', as indicated by the operator's PM AMM Task, which would have allowed for the timely detection and replacement of out-of-tolerance components, ensuring their integrity and correct operation.
- The Service Letter 737-SL-32-057-E 'broken torsion link', does not provide for mandatory actions, it only recommends maintenance practices to prevent fractures in mechanical components of the 'cimmetic chain for shimmy damper operation'.
- Service Letter 737-SL-32-057-E 'fractures in lower torsion link', makes a proper interpretation difficult; that could induce errors to choose the corresponding AMM Task and determine its scope.
Final Report:

Crash of a Boeing 737-3K2 in Cuzco

Date & Time: Oct 23, 2015 at 1115 LT
Type of aircraft:
Boeing 737-300
Operator:
Registration:
OB-2040-P
Flight Phase:
Landing (descent or approach)
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
Schedule:
Lima - Cuzco
MSN:
24329/1858
YOM:
1990
Flight number:
P9216
Location:
Cuzco-Alejandro Velasco Astete
Cuzco
Country:
Peru
Region:
South America
Crew on board:
6
Crew fatalities:
Pax on board:
133
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
6352
Captain / Total hours on type:
1971.00
Copilot / Total flying hours:
1455
Copilot / Total hours on type:
1219
Aircraft flight hours:
74018
Aircraft flight cycles:
42389
Circumstances:
Following an uneventful flight from Lima, the crew started the descent to Cuzco-Alejandro Velasco Astete Airport Runway 28. On approach, the aircraft was configured for landing and flaps were deployed to 15°. Following a smooth landing, the crew started the braking procedure when, eight seconds after touchdown, he noticed vibrations coming from the left main gear. At a speed of 100 knots, the right main gear collapsed. The aircraft rolled for few hundred metres then came to a halt on the runway. All 139 occupants evacuated safely and the aircraft was damaged beyond repair.
Probable cause:
Unstable approach and inadequate landing technique for high altitude fields, which resulted in increased landing speed, the start of the flare manoeuvre at higher altitude, and low descent speed, which made the OB-2040-P aircraft make soft contact with the runway, causing inefficiency in operation of the shimmy damper, which did not prevent uncontrolled oscillation of the shock absorbers.
Contributing factors:
- Lack of instruction and training in simulators that include techniques and maneuvers of landing at high altitude fields, with emphasis on speed control at landing.
- Lack of a performance analysis process, through the use of flight recorders or other installed data recording equipment and flight parameters, by the operating company, to enable supervision, control and corrective measures in the operational use of its aircraft.
Final Report:
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