Maintenance lapse caused Havelian plane crash, concludes initial report

KARACHI: The Security Investigation Board (SIB) of Pakistan tasked to probe into the Pakistan Worldwide Airways (PIA) aircraft crash close to Havilian in 2016 has compiled a preliminary report, pointing to a upkeep lapse because the potential explanation for the incident and making some “instant suggestions” to keep away from such incidents.

The PIA aircraft (PK-661) with 48 folks, together with famous determine Junaid Jamshed, his spouse and Deputy Commissioner Chitral Osama Warraich, on board had crashed in Saddha Batolni village close to Havelian.

The report, titled Fast Security Suggestions, states that the investigation into the crash is heading in the direction of a concluding stage, nonetheless, some vital findings of technical nature require instant consideration of the authorities involved.

“Sequence of occasions was initiated with dislodging of 1 blade of Energy Turbine Stage (PT-1), inside Engine No 1 (left aspect engine) as a result of fatigue. This dislodging of 1 blade resulted in in-flight engine shut down, and it contributed in the direction of erratic/ irregular habits of NO 1 Propeller,” reads the report.

“In line with a Service Bulletin” these generators blades had been to be modified after completion of 10,000 hours, on instant subsequent upkeep alternative. The mentioned engine was beneath upkeep on 11 Nov 2016, at the moment these blades had accomplished 10004 hours (due for a change). This exercise ought to have been undertaken at the moment, nevertheless it was missed out by the involved.”

It states that the plane flew roughly 93 hours after the above-mentioned upkeep exercise earlier than it crashed on Dec 7. “Lacking out of such exercise highlights a lapse on the a part of PIAC (Upkeep and High quality Assurance) in addition to a potential in-adequacy/lack of oversight by PCAA [Pakistan Civil Aviation Authority].”

The board in gentle of the above-mentioned observations advisable the nationwide flag service to “guarantee instant implementation of the Service Bulletin in letter and spirit on your entire fleet of ATR aircrafts, undertake an audit of the associated areas of upkeep practices, confirm root trigger(S) for the mentioned lapse, and undertake acceptable corrective measures to keep away from recurrence.”

“PCAA is to guage its oversight mechanism for its adequacy to find lapses and intervene in a proactive method, confirm shortfall(s) and undertake essential enhancements.”

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