Sprint SF34 at Kirkwall on Mar 20th 2017, descended below minimum safe altitude on approach

Last Update: October 3, 2017 / 17:45:19 GMT/Zulu time

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Incident Facts

Date of incident
Mar 20, 2017

Classification
Report

Airline
Sprintair

Departure
Sumburgh, United Kingdom

Destination
Kirkwall, United Kingdom

Aircraft Registration
SP-KPV

Aircraft Type
SAAB 340

ICAO Type Designator
SF34

Airport
Kirkwall Airport, Orkney Islands

Airport ICAO Code
EGPA

A Sprintair Saab 340A on behalf of Loganair, registration SP-KPV performing mail flight LM-757 from Sumburgh,SC to Kirkwall,SC (UK), was on approach to Kirkwall performing the ARC procedure to join the ILS runway 27 about 11nm out of the aerodrome when the aircraft descended below minimum safe altitude. Following ATC intervention the aircraft returned to safe altitude and continued for a safe landing on Kirkwall's runway 27.

Poland's PKWBL reported in their brief bulletin in Polish that the probable cause of the occurrence was the crew's omission to switch the altimeter to QNH pressure and inaccurate processing of the approach checklist.

The PKWBL reported the crew was on the 11nm arc to join the ILS runway 27, minimum safe altitude 1600 feet MSL, when the aircraft according to flight data recorder descended to 960 feet MSL (aerodrome elevation 58 feet MSL). At the same time the crew confirmed an altitude of 1900 feet MSL.

The PKWBL reported at least one member of the flight crew was familiar with the procedures at Loganair, both pilots had received briefing and information for operation in the UK and had carefully prepared for the airports they were operating into.

Metars:
EGPA 201750Z 28016KT 9999 SHRA FEW008CB SCT025 06/04 Q0983=
EGPA 201720Z 28020KT 9999 VCSH FEW008 SCT015 BKN025 06/04 Q0982 RERA=
EGPA 201650Z 26021KT 9999 -SHRA FEW006 SCT010 BKN020 06/05 Q0981 RERA=
EGPA 201620Z 25025KT 9999 SHRA FEW006 SCT010 BKN020 06/05 Q0981=
EGPA 201550Z 25029G39KT 9999 -SHRA SCT012 BKN018 07/05 Q0980 RERA=
EGPA 201520Z 25028G41KT 9999 SHRA SCT015 BKN020 07/04 Q0980=
EGPA 201450Z 24032G47KT 9999 SHRA SCT015 BKN020 07/04 Q0979=
EGPA 201420Z 24035G45KT 9999 VCSH SCT015 SCT020 BKN025 07/04 Q0979=
EGPA 201350Z 24032G46KT 9999 VCSH SCT015 SCT020 BKN025 07/04 Q0979 RERA=
EGPA 201320Z 23033G45KT 9999 SHRA FEW020 BKN025 BKN035 07/03 Q0979=
EGPA 201250Z 23029G42KT 9999 VCSH FEW020 BKN035 07/02 Q0979=
Incident Facts

Date of incident
Mar 20, 2017

Classification
Report

Airline
Sprintair

Departure
Sumburgh, United Kingdom

Destination
Kirkwall, United Kingdom

Aircraft Registration
SP-KPV

Aircraft Type
SAAB 340

ICAO Type Designator
SF34

Airport
Kirkwall Airport, Orkney Islands

Airport ICAO Code
EGPA

This article is published under license from Avherald.com. © of text by Avherald.com.
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