<< >> NASA ASRS Report 146845, May 1990

Aircraft climbed above the assigned altitude which resulted in less than standard separation with another aircraft.

Attributes
ACN	146845
Time
Date	199005
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : adw
State Reference	DC
Altitude	msl bound lower : 3000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : dca
Operator	other
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 13
ASRS Report	146845
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	other other : other
Events
Anomaly	altitude deviation : overshoot conflict : airborne less severe non adherence : required legal separation non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 9000 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

2 aircraft involved, a widebody transport and small aircraft. The conflict was a direct result of widebody transport not complying with an assigned altitude of 3000' MSL. The civil aircraft was on in IFR flight plan at 4000' MSL. I believe the event occurred because the widebody transport pilot did not establish radio communications off the runway. The first call came 7 mi away from the departure airport after the conflict had happened. All that could be done was issue a safety advisory to the small aircraft pilot. Small aircraft reported the aircraft in sight. A definite language barrier existed at the time. After the incident the widebody transport flight crew was issued further turns and they did not comply with them.

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Original NASA ASRS Text

Title: ACFT CLIMBED ABOVE THE ASSIGNED ALT WHICH RESULTED IN LESS THAN STANDARD SEPARATION WITH ANOTHER ACFT.

Narrative: 2 ACFT INVOLVED, A WDB AND SMA. THE CONFLICT WAS A DIRECT RESULT OF WDB NOT COMPLYING WITH AN ASSIGNED ALT OF 3000' MSL. THE CIVIL ACFT WAS ON IN IFR FLT PLAN AT 4000' MSL. I BELIEVE THE EVENT OCCURRED BECAUSE THE WDB PLT DID NOT ESTABLISH RADIO COMS OFF THE RWY. THE FIRST CALL CAME 7 MI AWAY FROM THE DEP ARPT AFTER THE CONFLICT HAD HAPPENED. ALL THAT COULD BE DONE WAS ISSUE A SAFETY ADVISORY TO THE SMA PLT. SMA RPTED THE ACFT IN SIGHT. A DEFINITE LANGUAGE BARRIER EXISTED AT THE TIME. AFTER THE INCIDENT THE WDB FLT CREW WAS ISSUED FURTHER TURNS AND THEY DID NOT COMPLY WITH THEM.

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.