An air carrier DC9 and B727 were on approach to runway 9L with a speed restr of 180 KTS until the marker. The DC9 slowed too early causing the B727 to start overtaking. The reporter controller had the DC9 sidestep to runway 9R. The B727 landed ahead of the DC9. Supervisor controller was notified, but no action taken.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	394062
Time
Date	199801
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : phl
State Reference	PA
Altitude	msl bound lower : 900 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : phl tower : phl
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach landing other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach landing other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar pilot : private pilot : instrument
Experience	controller radar : 9 flight time total : 1200
ASRS Report	394062
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 8500 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Operational Error Pilot Deviation

Narrative:

DC9 was #1 on final, B727 was #2 on final. Both aircraft were cleared and told to maintain 180 KTS to the marker, DC9 slowed early. DC9 came out of the clouds at 900 ft MSL and told to sidestep to runway 9L (at this time aircraft were separated by less than 200 ft and 1/2 mi). B727 landed on runway 9R before DC9 landed runway 9L. Supervisor was notified no action taken.

Original NASA ASRS Text

Title: AN ACR DC9 AND B727 WERE ON APCH TO RWY 9L WITH A SPD RESTR OF 180 KTS UNTIL THE MARKER. THE DC9 SLOWED TOO EARLY CAUSING THE B727 TO START OVERTAKING. THE RPTR CTLR HAD THE DC9 SIDESTEP TO RWY 9R. THE B727 LANDED AHEAD OF THE DC9. SUPVR CTLR WAS NOTIFIED, BUT NO ACTION TAKEN.

Narrative: DC9 WAS #1 ON FINAL, B727 WAS #2 ON FINAL. BOTH ACFT WERE CLRED AND TOLD TO MAINTAIN 180 KTS TO THE MARKER, DC9 SLOWED EARLY. DC9 CAME OUT OF THE CLOUDS AT 900 FT MSL AND TOLD TO SIDESTEP TO RWY 9L (AT THIS TIME ACFT WERE SEPARATED BY LESS THAN 200 FT AND 1/2 MI). B727 LANDED ON RWY 9R BEFORE DC9 LANDED RWY 9L. SUPVR WAS NOTIFIED NO ACTION TAKEN.

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.