Mahan A313 at Yerevan on May 26th 2019, overran displaced end of runway

Last Update: March 29, 2020 / 17:23:35 GMT/Zulu time

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Photo of Mahan Air EP-MNV, Airbus A310-300 — Mahan Air EP-MNV, Airbus A310-300 (Photo credit: airlines470 / Flickr / License: CC by-sa)

Incident Facts

Date of incident
May 26, 2019

Classification
Incident

Airline
Mahan Air

Flight number
W5-1150

Departure
Tehran Imam Khomeini, Iran

Destination
Yerevan, Armenia

Aircraft Registration
EP-MNV

Aircraft Type
Airbus A310-300

ICAO Type Designator
A313

Airport
Zvartnots International Airport, Yerevan

Airport ICAO Code
UDYZ

A Mahan Air Airbus A310-300, registration EP-MNV performing flight W5-1150 from Tehran Imam Khomeini (Iran) to Yerevan (Armenia) with 169 passengers and 11 crew, was on approach to Yerevan's runway 09 (landing distance available 2400 meters/7870 feet) in light tailwind (about 4 knots), when the aircraft became high on final approach but continued the landing for touchdown at 13:25L (09:25Z). Despite maximum braking applied the aircraft overran the displaced end of the runway destroying a runway end light and damaging two tyres before coming to a stop.

On Jun 3rd 2019 Iran's AIB reported Armenia's Authorities have delegated the investigation to Iran's AIB.

10 days earlier an Iranian IL-76 had a similiar overrun, see Incident: Pouya IL76 at Yerevan on May 16th 2019, overran displaced end of runway.

On Mar 29th 2020 Iran's AIB released their final report concluding the probable cause of the incident was:

The Main Cause of incident was wrong perception of the flight crew regarding issued NOTAMs of displaced threshold of RWY27.

The Contributing Factors to the incident were:

- Insufficient risk assessment for fligh t time planning between two international flights.

- Lack of CRM about communication between cockpit crew and commanding Go around.

- Cockpit crew failure to perform related approach briefing effectively.

The AIB summarized the sequence of events:

Prior to top of descent (TOD), cockpit crew listened to ATIS which was emphasizing NOTAM about RWY 27 threshold displacement by 1,450. Then the flight made a contact with Yerevan Approach on 126.0 MHz and was vectored to join final for ILS DME for RWY 09 approach and after landing to clear RWY 09 via TWY "B". In addition, on the final approach, cockpit crew were advised by the approach controller about the RWY 27 displacement by 1,450 meters and in reply first officer as a pilot monitoring just had acknowledged it "copied". The captain who was acting as a pilot flying, made a mistake about the runway displacement and imagined displacement on the beginning of RWY 09 and perform long flared landing and approximately 80 to 100 ft prior to the end of RWY09 (RWY 27 displacement threshold), he observed the (RWY end lights) threshold lights of RWY27 so, he made a full braking action accompany with a late thrust reverser cancellation were applied by him, to avoid crossing of lights, but it was too late and unfortunately passed over the threshold lights and the tire wheels No;5 and No;6 tires were damaged. Due to serious damage of No.5 and No.6 tires as a deep cut, the aircraft grounded at Zvartnots INTL Airport and No.5 and No.6 tires were changed by the new onboard tires on the aircraft cargo. Finally, the aircraft was released for return flight and landed at Imam Khomeini INTL Airport safely.

The AIB analysed:

FDR analyzing confirms that aircraft accomplished an ILS approach and disengaged both autopilots while descending through 660 feet AGL (3,560 feet MSL) and while descending through 180 feet AGL(3,070 feet MSL), pilot flying didn't follow the glide slope information anymore and flew above the glide path intentionally to make a landing behind the runway displacement which had in mind mistakenly which was not for RWY 09 threshold .

Related NOTAM:
A0058/19 NOTAMN
Q) UDDD/QFAXX/IV/NBO/A /000/999/4009N04424E005
A) UDYZ B) 1905150500 C) 1906161600
E) THRESHOLD RWY 27 REPLACED TO THE CENTER OF THE RWY BY 1450M
AT THAT TIME CENTRE LINE,TDZ LIGHTING SYSTEM AND PAPI FOR
RWY 27 OUT OF SERVICE
AT THAT TIME 180 DEGREE TURN OF THE AIRCRAFT ON THE RWY 09/27 IS
APPROVED FOR TAKE OFF RWY 27 AND LANDING RWY 09
FOR RWY 09 TORA(M)-2400, TODA(M)-2850, ASDA(M)-2850, LDA(M)-2400
FOR RWY 27 TORA(M)-2400, TODA(M)-2850, ASDA(M)-2800, LDA(M)-2400
CAT 2 AND CAT 1 OUT OF SERVICE

Metars:
UDYZ 261100Z 23005KT 170V310 9999 FEW040 31/M01 Q1009 R09/000070 NOSIG=
UDYZ 261030Z 26006KT 9999 FEW040 31/M01 Q1010 R09/000070 NOSIG=
UDYZ 261000Z 29005KT 230V360 9999 FEW040 30/M02 Q1010 R09/000070 NOSIG=
UDYZ 260930Z 28003KT 210V020 9999 FEW040TCU 30/00 Q1011 R09/000070 NOSIG=
UDYZ 260900Z 30003KT 270V350 9999 FEW040TCU 29/M01 Q1011 R09/000070 NOSIG=
UDYZ 260830Z 28003KT 210V360 9999 FEW040TCU 29/01 Q1012 R09/000070 NOSIG=
UDYZ 260800Z VRB01KT 9999 FEW040 28/04 Q1012 R09/000070 NOSIG=
UDYZ 260730Z 13002KT 9999 FEW046 26/07 Q1013 R09/000070 NOSIG=
UDYZ 260700Z VRB02KT 9999 FEW046 24/08 Q1013 R09/000070 NOSIG=
UDYZ 260630Z 15004KT 9999 FEW046 22/09 Q1013 R09/000070 NOSIG=
UDYZ 260600Z VRB02KT 9999 FEW046 22/09 Q1013 R09/000070 NOSIG=