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Air carrier flight crew reported the parking brake was still set during pushback resulting in a broken tow bar shear pin. Both pilots referenced lack of flying as a contributing factor.
| Attributes | |
| ACN | 1766786 |
| Time | |
| Date | 202010 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 26 Flight Crew Type 2357 |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown |
Narrative:
This was the second leg of the day. I was the first officer on my last day of a three-day reserve pairing and was assigned a ZZZ turn from ZZZ1. I have flown with this captain before. During the initial briefing we briefed that a lack of proficiency due to reduced hours was an additive condition and that we needed to be extra vigilant to keep each other out of trouble. In my case; it had been 40 calendar days since my last flight. We were preparing to push back from the gate in ZZZ. We were on time. I called ground for clearance to pushback; received it and notified the captain. He gave the standard talk to the ground crew and I was clearing the right side of the aircraft for pushback. I did not noticed that the parking brake was still set. Ground crew commenced pushback and the shear pin in the tow bar broke.more attention to switch position; avoid expectation bias and more flying wouldn't hurt.
Original NASA ASRS Text
Title: Air carrier flight crew reported the parking brake was still set during pushback resulting in a broken tow bar shear pin. Both pilots referenced lack of flying as a contributing factor.
Narrative: This was the second leg of the day. I was the First Officer on my last day of a three-day reserve pairing and was assigned a ZZZ turn from ZZZ1. I have flown with this Captain before. During the initial briefing we briefed that a lack of proficiency due to reduced hours was an additive condition and that we needed to be extra vigilant to keep each other out of trouble. In my case; it had been 40 calendar days since my last flight. We were preparing to push back from the gate in ZZZ. We were on time. I called Ground for clearance to pushback; received it and notified the Captain. He gave the standard talk to the ground crew and I was clearing the right side of the aircraft for pushback. I did not noticed that the parking brake was still set. Ground Crew commenced pushback and the shear pin in the tow bar broke.More attention to switch position; avoid expectation bias and more flying wouldn't hurt.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.