The incident took place in LKPR, between a LUFTHANSA flight DLH5NC and SUN EXPRESS flight SXS5663.
Operation took place in the morning rush hours. The Lufthansa flight DLH5NC , an Airbus A321-131 , began taxiing at 08:26:21 from the stand 17 on TWYs H, F, E following ATS instructions.
The A321-131 crew stopped at the crossing TWY F and TWY E and after a short hold (ca 5 seconds) went a little bit farther on TWY E.
The A321-131 nose was more than 34.5 m behind the A320 that was standing in front of it at the RWY 06 holding point. On TWY E the A321-131 crew reported “ready at sequence” at 08:31:40.
At 08:34:45 an airplane CRJ-200 taxiing on TWY F to RWY 06 holding point passed behind the A321-131 (see report, Scheme 1). The distance between the CRJ-200 wing tip and the A321-131 tail was ca 6 m.
The distance between the A320 and the A321-131 was established from a radar record of the S-SMGCS system.
All of the schemes presented were processed in an Aero Turn program and the aircraft and the land infrastructure are in the same scale in this report.
At 08:28:50 Sun Express flight SXS5663 operated with a Boeing B737-8BK , on stand 2 asked for taxiing clearance. TWR-GEC cleared taxiing on TWYs A1, Z, H, and F to RWY 06 holding point.
At 08:37:04 the B737-8BK crew reported it could start from RWY 06 / TWY E intersection and stopped at TWY F on TWY FF level.
TWR-GEC issued an instruction, for operational reasons, “continue to the end please”.
At 08:37:40 the B737-8BK crew continued its further taxiing on TWY F toward THR RWY 06.
During this taxiing the Sun Express flight SXS5663 right winglet struck the stabiliser of the A321-131 standing on TWY E
After the collision the B737-8BK crew stopped. At 08:38:23 the B737- 8BK crew reported the event over the TWR-GEC frequency.
At 08:40:03 the A321-131 crew reported the collision with the B737-8BK over the TWR-TEC frequency and asked for return to the stand. TWR-TEC confirmed he had been already advised of the collision by the B737-8BK crew.
At 08:40:50 the TWR-MMP informed RPL dispatcher about “two airplanes having been “brushed against” each other on TWY E / TWY F intersection asking him to check the intersection for possible debris.
At 08:42:25 TWR-TEC cleared the A321-131 to taxi on RWY 06 back to the apron.
Main cause was identified as Human factor failure – the taxiing crew did not keep a safe separation distance of their airplane from the standing one.