Controller cleared small aircraft to land on runway occupied by disabled small transport. Less than ...

Attributes
ACN	88530
Time
Date	198805
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : baf
State Reference	MA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : srq
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	ground : holding
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	ground other : taxi landing other
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	88530
Person 2
Function	flight crew : single pilot
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 800 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Small transport X landed on runway 33 and came to a stop 3300' from the approach end. He was on the far right side of the runway and reported his right main gear had a flat tire. A maintenance crew was dispatched to the location and it appeared they were preparing to remove the aircraft from the runway. Small aircraft Y reported left base runway 33 and was cleared to land. He landed and taxied ahead and turned off on runway 20 approximately 800' short of small transport X. Local controller was standing at a position with a tower post between himself and the disabled aircraft and did not see small transport X when scanning the runway. The runway should have been closed until it was positively established that the disabled aircraft was removed from that runway.

Original NASA ASRS Text

Title: CTLR CLEARED SMA TO LAND ON RWY OCCUPIED BY DISABLED SMT. LESS THAN STANDARD SEPARATION.

Narrative: SMT X LANDED ON RWY 33 AND CAME TO A STOP 3300' FROM THE APCH END. HE WAS ON THE FAR RIGHT SIDE OF THE RWY AND REPORTED HIS RIGHT MAIN GEAR HAD A FLAT TIRE. A MAINT CREW WAS DISPATCHED TO THE LOCATION AND IT APPEARED THEY WERE PREPARING TO REMOVE THE ACFT FROM THE RWY. SMA Y RPTED LEFT BASE RWY 33 AND WAS CLRED TO LAND. HE LANDED AND TAXIED AHEAD AND TURNED OFF ON RWY 20 APPROX 800' SHORT OF SMT X. LCL CTLR WAS STANDING AT A POS WITH A TWR POST BTWN HIMSELF AND THE DISABLED ACFT AND DID NOT SEE SMT X WHEN SCANNING THE RWY. THE RWY SHOULD HAVE BEEN CLOSED UNTIL IT WAS POSITIVELY ESTABLISHED THAT THE DISABLED ACFT WAS REMOVED FROM THAT RWY.

Data retrieved from NASA's ASRS site as of August 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.

Controller cleared small aircraft to land on runway occupied by disabled small transport. Less than standard separation.