<< >> NASA ASRS Report 469235, April 2000

An MD80 immediately after takeoff at 2500 ft departure control radio became intermittent and flight director failed allowing excursion into jfk airspace.

Attributes
ACN	469235
Time
Date	200004
Day	Tue
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	msl single value : 2500
Environment
Light	Dawn
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : initial
Route In Use	departure sid : 13 whitestone
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	469235
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
ASRS Report	469236
Events
Anomaly	aircraft equipment problem : critical other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : flight mode annunciator other flight crewa other flight crewb other other : person 3
Resolutory Action	controller : issued alert flight crew : returned to intended or assigned course none taken : detected after the fact
Consequence	other other
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

Departed runway 13 on whitestone climb out. At about 1.5 DME we were instructed to contact departure. On initial contact we were instructed to turn to 320 degrees. I acknowledged, but departure repeated the instruction. I acknowledged again and still departure did not hear me. First officer was flying and had started the turn with first instruction. After another acknowledgement departure finally heard me and mentioned his radio was cutting out on him. As we continued the turn the flight director command bars on both ADI's disappeared along with the roll annunciation on both FMA's. The heading light was also on. Departure then told us to tighten up the turn to avoid jfk airspace. We increased the bank and about 2 mins later the heading light went out. The roll FMA returned as did the command bars. System operated normally for the rest of the flight. The combination of the controller's radio and the heading problem caused us to overshoot the ground track on climb out.

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Original NASA ASRS Text

Title: AN MD80 IMMEDIATELY AFTER TKOF AT 2500 FT DEP CTL RADIO BECAME INTERMITTENT AND FLT DIRECTOR FAILED ALLOWING EXCURSION INTO JFK AIRSPACE.

Narrative: DEPARTED RWY 13 ON WHITESTONE CLBOUT. AT ABOUT 1.5 DME WE WERE INSTRUCTED TO CONTACT DEP. ON INITIAL CONTACT WE WERE INSTRUCTED TO TURN TO 320 DEGS. I ACKNOWLEDGED, BUT DEP REPEATED THE INSTRUCTION. I ACKNOWLEDGED AGAIN AND STILL DEP DID NOT HEAR ME. FO WAS FLYING AND HAD STARTED THE TURN WITH FIRST INSTRUCTION. AFTER ANOTHER ACKNOWLEDGEMENT DEP FINALLY HEARD ME AND MENTIONED HIS RADIO WAS CUTTING OUT ON HIM. AS WE CONTINUED THE TURN THE FLT DIRECTOR COMMAND BARS ON BOTH ADI'S DISAPPEARED ALONG WITH THE ROLL ANNUNCIATION ON BOTH FMA'S. THE HDG LIGHT WAS ALSO ON. DEP THEN TOLD US TO TIGHTEN UP THE TURN TO AVOID JFK AIRSPACE. WE INCREASED THE BANK AND ABOUT 2 MINS LATER THE HDG LIGHT WENT OUT. THE ROLL FMA RETURNED AS DID THE COMMAND BARS. SYS OPERATED NORMALLY FOR THE REST OF THE FLT. THE COMBINATION OF THE CTLR'S RADIO AND THE HDG PROB CAUSED US TO OVERSHOOT THE GND TRACK ON CLBOUT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.