KLM Flight 4805 (March 27, 1977)

Date: March 27, 1977
Passengers: 234
Crew: 14
Fatalities: 248
Pan-Am Flight 1736 fatalities: 335
Total fatalities: 583
Cause: “Inadequate visual information caused by low visibility...misleading aural information” which resulted in KLM attempting takeoff while Pan Am 1736 was on the runway, leading to a collision.


Legend:
CAM		Cockpit area microphone or sound source
RDO		Radio transmission from accident aircraft
-1		Voice identified as captain
-2		Voice identified as first officer
-3		Voice identified as flight engineer
-?		Voice unidentified
APP		Tenerife Approach Control
GRD		Ground
UKN		Unidentified source
TWR		Tower
PAA		Pan Am radio communication
*		Unintelligible word
@       Non-pertinent word
#       Expletive
( )     Questionable insertion
(( ))   Editorial insertion
...     Pause
Times are expressed in GMT


---


1702:51.3	TWR		KLM four eight zero five how many taxi ways did you pass?

1702:56		RDO-2	I think we just passed Charlie four now

1703:01		TWR		Okay at the end of the runway make a one eighty and report ready for ATC clearance

1703:09		RDO-2	Okay sir

1703:11.4	CAM-2	Do they have center-line lighting?

1703:14		RDO-1	Is the center line lighting available four eight zero five?

1703:18.0	CAM-2	Would he know (it)?

1703:19		TWR		Stand by I don't think so sir. I don't think so stand by. I will check

1703:23		RDO-1	Okay

1703:25		TWR		They are working on them eh anyway will check it

1703:28		RDO-1	Okay

1703:29		PAA		Eh would you confirm that you want the Clipper one seven three six to turn left at the third intersection ((emphasis on third))

1703:36		TWR		Third one sir, one two three third, third one

1703:40		PAA		Very good thank you

1703:47		TWR		Clipper seven one three six report leaving the runway

1703:48.6	CAM-?	((sound of two coughs))

1703:54.1	CAM-1	Check list verder

1703:55		PAA		Clipper one seven three six

1703:57.4	CAM-2	Brake temperature

1704:05.4	CAM-3	All in the green

1704:07.6	CAM-2	Fuel system

1704:10.1	CAM-3	Set for takeoff

1704:11.2	CAM-2	EGT alarm

1704:12.7	CAM-3	Off

1704:37.1	CAM-?	Hope he's gonna make it

1704:38.0	CAM-1	He

1704:39.2	CAM-?	I hope so too

1704:41.5	CAM-3	Yes I understand
			CAM		((sound of three sharp clicks))

1704:48.6	CAM-2	Turn no tires from withunder (does not scrub the tires)

1704:58		TWR		KLM eight seven zero five and Clipper one seven three six for your information the center line lighting is out of service

1705:05.8	CAM-1	Okay

1705:06		RDO-2	I copied that

1705:07		RDO-2	Four eight zero five

1705:08.7	CAM-2	Checklist

1705:09.5	CAM-2	Cabin warned
			CAM		((sound of chime))

1705:12.3	CAM-1	Yea okay I will get with it

1705:16.6	CAM-2	Flaps set eh ten en?

1705:18.6	CAM-3	Eight greens

1705:19.9	CAM-2	Water injection

1705:21.1	CAM-3	Not (no)

1705:22.1	CAM-2	Ignition

1705:23.1	CAM-3	Is coming

1705:24.0	CAM		((sound of four clicks over 3s))

1705:24.2	CAM-2	Body gear

1705:26.1	CAM-?	(Ignition)
			CAM-?	(Flight start)

1705:27.1	CAM-3	All on flight start

1705:28.3	CAM-3	Body gear okay?

1705:29.6	CAM-1	Yes go ahead
			CAM-2	Wipers

1705:30.4	CAM-2	Wipers on?

1705:31.7	CAM-1	Lights on are on

1705:32.5	CAM-2	No the wipers

1705:33.4	CAM-1	Now no I'll wait a bit

1705:35.4	CAM-1	If I need them I'll ask (for them)

1705:36.7	CAM-2	Body gear disarmed landing lights on, check list completed

1705:41.5	CAM-2	Wait a minute we do not have an ATC clearance

1705:42.8	CAM-1	No I know that, go ahead ask

1705:44		RDO-2	Eh the KLM four eight zero five is now ready for takeoff and eh we are waiting for our ATC clearance

1705:53		TWR		KLM eight seven zero five eh you are cleared to the Papa beacon climb to and maintain flight level niner zero right turn after takeoff proceed with heading zero four zero until intercepting the three two five radial from Las Palmas VOR

1706:07.39	CAM-1	Yes

1706:09		RDO-2	Eh roger sir we are cleared to eh the Papa beacon flight level nine zero right turn out zero four zero until intercepting the three two five. We are now (eh taking off)

1706:12.25	CAM-1	We go... check thrust

1706:13.99	CAM		((sound of engine starting to spin up))

1706:18.19	TWR		Okay...

1706:19.39			((sound of squeal for 3.8s caused by simultaneous PAA and TWR communications, resulting in vital communication to hold being missed by KLM))

1706:25.47	TWR		Papa Alpha one seven three six report runway clear

1706:29.59	PAA		Okay. We'll report when (we are) clear

1706:31.69	TWR		Thank you

1706:32.43	CAM-3	Is he not clear then? (Is he not there off)

1706:34.10	CAM-1	What did you say?

1706:34.15	PAA		(Yup)

1706:34.7	CAM-3	Is he not clear that Pan American (is he there not off that Pan American)

1706:35.70	CAM-1	Oh yes (well yes) ((spoken emphatically))

1705:43.49	CAM-2	V one

1705:47.44	CAM-1	Oh shit

1705:49.03	CAM		((sound of impact))

1705:49.81			((end of recording))