Nolinor B732 near Mary River on Apr 5th 2017, cabin pressure problems during diversion

Last Update: April 29, 2017 / 17:18:15 GMT/Zulu time

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Incident Facts

Date of incident
Apr 5, 2017

Classification
Incident

Flight number
N5-793

Aircraft Registration
C-GNLW

Aircraft Type
Boeing 737-200

ICAO Type Designator
B732

A Nolinor Aviation Boeing 737-200, registration C-GNLW performing flight N5-793 from Resolute Bay,NU to Mary River,NU (Canada) with 106 people on board, went around at Mary River due to weather conditions. The crew decided to divert to Iqaluit,NU and climbed out of Mary river, when climbing through FL350 the crew received indication of the cabin altitude climbing at about 1000 fpm, the cabin climbed to 10,500 feet. The crew stopped the climb, declared PAN PAN and requested a descent to FL230. Descending through FL280 the crew was able to regain control of the cabin pressure and stabilized the cabin altitude at 8000 feet. The aircraft maintained FL280 and continued to Iqaluit for a safe landing.

The Canadian TSB reported maintenance discovered the outflow valve heated gasket was inoperative.
Aircraft Registration Data
Registration mark
C-GNLW
Country of Registration
Canada
Date of Registration
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Certification Basis
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TCDS Ident. No.
Manufacturer
Boeing
Aircraft Model / Type
737-2R4C
ICAO Aircraft Type
B732
Year of Manufacture
Serial Number
Aircraft Address / Mode S Code (HEX)
Maximum Take off Mass (MTOM) [kg]
Engine Count
Engine Type
Main Owner
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Aircraft registration data reproduced and distributed with the permission of the Government of Canada.

Incident Facts

Date of incident
Apr 5, 2017

Classification
Incident

Flight number
N5-793

Aircraft Registration
C-GNLW

Aircraft Type
Boeing 737-200

ICAO Type Designator
B732

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