United B739 at Washington on Sep 17th 2018, rejected takeoff after ATC cleared aircraft to cross the runway

Last Update: September 21, 2018 / 16:48:03 GMT/Zulu time

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Incident Facts

Date of incident
Sep 17, 2018

Classification
Incident

Airline
United

Flight number
UA-326

Aircraft Registration
N38424

Aircraft Type
Boeing 737-900

ICAO Type Designator
B739

Airport ICAO Code
KIAD

A United Boeing 737-900, registration N38424 performing flight UA-326 from Washington Dulles,DC (USA) to Seattle,WA (USA), reported ready for departure and was instructed to line up runway 19C and wait, tower advised there were a couple of runway crossings ahead of their departure. About 40 seconds later tower cleared UA-326 for takeoff, the aircraft commenced its takeoff roll at some stage. About 40 seconds after the takeoff clearance tower cleared two aircraft to cross runway 19C. When the crew of UA-326 saw one of the aircraft on the runway they rejected takeoff and announced they were aborting seeing an aircraft on the runway. Tower queried whether they had been cleared to takeoff, the crew affirmed they had received clearance for takeoff. The second aircraft cleared to cross had stopped ahead of the runway. Tower cancelled the takeoff clearance, instructed UA-326 to vacate the runway and cleared the two crossing aircraft to continue crossing.

The controller continued duties.

UA-326 was able to depart about 15 minutes later, was cleared for departure by the same controller, and reached Seattle on time.



Metars:
KIAD 180052Z 17006KT 10SM BKN013 BKN026 25/24 A2987 RMK AO2 SLP112 T02500239=
KIAD 172352Z 17009G17KT 10SM BKN015 BKN028 25/24 A2987 RMK AO2 SLP111 60048 T02500239 10256 20239 56008=
KIAD 172252Z 15010G19KT 10SM BKN017 BKN048 25/24 A2987 RMK AO2 SLP110 T02500239=
KIAD 172152Z 15009G15KT 10SM BKN017 OVC026 25/24 A2988 RMK AO2 SLP115 T02500239=
KIAD 172125Z 14010KT 10SM SCT016 BKN028 BKN055 26/24 A2988 RMK AO2 T02560239=
KIAD 172052Z 16009KT 10SM SCT012 BKN025 OVC032 25/24 A2989 RMK AO2 SLP118 60048 T02500239 56017=
KIAD 171952Z 16012G17KT 10SM BKN010 OVC014 24/24 A2990 RMK AO2 LTG DSNT S AND SW RAE34 SLP124 P0028 T02440239=
KIAD 171941Z 17008G17KT 7SM BKN010 OVC014 24/24 A2991 RMK AO2 LTG DSNT S RAE34 P0028 T02440239=
KIAD 171922Z 21017KT 1SM R01R/4000VP6000FT RA BR OVC010 24/23 A2991 RMK AO2 SFC VIS 1 1/2 VIS 3/4V2 1/2 P0024 T02390233=
KIAD 171857Z 15011G19KT 1SM R01R/3500VP6000FT +RA BR BKN015 BKN021 OVC026 24/24 A2992 RMK AO2 SFC VIS 1 3/4 P0001 T02390239=
KIAD 171852Z 15015G20KT 7SM -RA FEW008 BKN015 OVC025 24/24 A2992 RMK AO2 RAE21B28 SLP129 P0020 T02440239=
KIAD 171840Z 15013G19KT 8SM -RA FEW008 BKN012 OVC029 24/23 A2992 RMK AO2 RAE21B28 P0020 T02440233=
KIAD 171822Z 16011G17KT 8SM BKN008 BKN029 OVC040 24/23 A2993 RMK AO2 RAE21 P0020 T02440233=
KIAD 171752Z VRB05G17KT 1SM R01R/4500VP6000FT +RA BR BKN008 BKN020 OVC032 24/23 A2994 RMK AO2 SLP136 P0042 60052 T02390233 10250 20233 58026=
Incident Facts

Date of incident
Sep 17, 2018

Classification
Incident

Airline
United

Flight number
UA-326

Aircraft Registration
N38424

Aircraft Type
Boeing 737-900

ICAO Type Designator
B739

Airport ICAO Code
KIAD

This article is published under license from Avherald.com. © of text by Avherald.com.
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