ASN Wikibase Occurrence # 310237
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| Date: | Tuesday 5 October 2021 |
| Time: | 11:19 UTC |
| Type: |  Airbus A320-251N |
| Owner/operator: | Air India |
| Registration: | VT-EXQ |
| MSN: | 8770 |
| Year of manufacture: | 2019 |
| Engine model: | CFMI CFM LEAP-1A26E1 |
| Fatalities: | Fatalities: 0 / Occupants: 144 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | 40 nm NE of Mumbai Airport -
 India
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Patna Jay Prakash Narayan International Airport (PAT/VEPT) |
| Mumbai-Chhatrapati Shivaji International Airport (BOM/VABB) | |
| Investigating agency: | AAIB India |
| Confidence Rating: |  Accident investigation report completed and information captured |
Air India flight AIC732, an Airbus A320neo (VT-EXQ) and a Beechcraft C90B King Air of Pinnacle Air (VT-NKF) were involved in an airprox incident.
Both aircraft were flying under the control of Lower Area Control, Mumbai.
AIC732 was descending to FL180 and VT-NKF was maintaining FL170 as per the ATC clearances. These aircraft were encountering adverse weather conditions and deviating from flight planned routes.
The incident took place when the First Officer (Pilot Flying) of AIC732 accepted an ATC descent clearance to FL150 intended for another aircraft and started descent to FL150 from FL180. This resulted in a conflict with opposite direction traffic VT-NKF. A TCAS RA was generated which was promptly responded by the flight crew members of AIC732. VT-NKF was not equipped with TCAS. However, VT-NKF was equipped with transponder Mode C.
When AIC732 commenced descent from FL180 and passed predefined limit of level for generation of Short-Term Conflict Alert (STCA), a conflict warning was generated on the air traffic controller’s situation display. The controller promptly reacted to the situation and issued conflict resolution instructions but flight crew members of AIC732 were busy in dealing the TCAS RA event. Both the aircraft passed each other with lateral separation of about 1 NM and vertical separation of 400 feet.
Accident investigation:
 |
|
Sources:
AAIB India
History of this aircraft
Other occurrences involving this aircraft
| 15 June 2023 | VT-EXQ | Air India | 0 | near Delhi | |
unk |
| Engine failure | ||||||
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Apr-2023 10:06 | harro | Added |
Corrections or additions? ... Edit this accident description
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