ASN Wikibase Occurrence # 265372
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Date: | Tuesday 6 July 2021 |
Time: | 16:30 LT |
Type: | Saab 340B |
Owner/operator: | Rex Airlines |
Registration: | VH-ZLJ |
MSN: | 340B-380 |
Fatalities: | Fatalities: 0 / Occupants: 19 |
Aircraft damage: | None |
Category: | Serious incident |
Location: | 31 km SW of Perth Int Airport, WA -
Australia
|
Phase: | Approach |
Nature: | Passenger - Scheduled |
Departure airport: | Perth Airport, WA (PER/YPPH) |
Destination airport: | Albany Airport, WA (ALH/YABA) |
Investigating agency: | ATSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:Rex Airlines flight ZL2131, a Saab 340B, was on climb from Perth Airport. At about 16:23, while climbing through an altitude of 6,000 ft, and before entering icing conditions, the crew activated the engine anti-ice and wing de-ice systems. Shortly afterwards, caution lights illuminated indicating a fault in the de-ice system. After levelling off at 7,000 ft, the crew actioned the relevant abnormal checklist, but the caution lights remained on. In response, the flight crew requested a descent to 5,000 ft to exit icing conditions and decided to return to Perth.
During the descent, the captain handed over control of the aircraft as pilot flying to the first officer. Over the next 2.5 minutes, air traffic control (ATC) communicated with the flight crew on multiple occasions, issuing a series of vectors and requesting flight information. As the aircraft was levelling off at 5,000 ft under autopilot control, ATC instructed the crew to make a right turn. About 20 seconds after beginning the turn, the aircraft’s aerodynamic stall warning stick shakers activated. The first officer initiated the stall recovery procedure before the captain took control as pilot flying to complete the recovery. The aircraft returned to Perth, landing at 16:42.
Contributing factors
- The aircraft’s right wing inboard de-ice boot probably delaminated shortly before encountering icing conditions, triggering the de-ice system fault that led to the flight crew’s decision to return to Perth.
- The pilot flying became task saturated due to high workload and did not notice the reducing airspeed, which was also missed by the pilot monitoring due to a focus on other tasks until the stick shaker activated.
Accident investigation:
|
| |
Investigating agency: | ATSB |
Report number: | |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
http://www.atsb.gov.au/publications/investigation_reports/2021/aair/ao-2021-027/ https://www.flightradar24.com/data/aircraft/vh-zlj#284dec9d
History of this aircraft
Other occurrences involving this aircraft Revision history:
Date/time | Contributor | Updates |
12-Jul-2021 16:36 |
harro |
Added |
12-Jul-2021 16:38 |
harro |
Updated [Time, Location] |
07-Jun-2022 19:46 |
Ron Averes |
Updated [Location] |
10-Jun-2022 09:23 |
Ron Averes |
Updated [Location] |
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