Jayawijaya B732 at Jayapura on Dec 18th 2021, engine failure
Last Update: March 9, 2022 / 20:31:52 GMT/Zulu time
On Mar 9th 2022 Indonesia's KNKT released their preliminary report reporting a borescopic inspection showed:
1. All blades of the engine compressor stage 1 until stage 5 were severely damage.
2. The blades of the compressor stage 6 were dent and bent.
3. The blades of the compressor stage 7 until stage 13 were bent, dent and (or) tear.
4. The combustion chamber and the High Pressure (HP) and Low Pressure (LP)
turbine were no damages.
With respect to the right hand engine the KNKT reported:
The last shop visit of the right engine was on 13 June 2016 (47,230 total engine hours and 37,418 total engine cycle). The shop visit was conducted at Atlantic Gas Turbine Center at Miami USA. Since the last shop visit of the right engine, the remaining cycle of HP Compressor stage 8 on the date of the occurrence was 1,226 cycles. The next shop visit was scheduled on April 2022 as the HP Compressor stage 8 is the limit life of the engine.
The operator had not implemented the engine monitoring program as the program has not been mandated by the regulation.
This article is published under license from Avherald.com. © of text by Avherald.com.
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