A PA28-151 lands without tower clearance at ajo, ca. Temporary tower in operation.

Attributes
ACN	380150
Time
Date	199709
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ajo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 40 flight time total : 700 flight time type : 700
ASRS Report	380150
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	incursion : landing without clearance non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

There was a temporary control tower at ajo by NOTAM for a special event. I was VFR from L18 and began position reports on CTAF (122.8) 7 mi south of ajo. An aircraft in the area and on frequency announced that the temporary tower was closed at XA00. I continued position reports in the standard pattern for ajo runway 25, left traffic. There were no other aircraft visible in the pattern or on frequency. On landing rollout, I saw a small platform north of runway 25 with 2 persons, 1 waving at me and 1 with binoculars. I taxied to fuel, and the operator said he thought the temporary tower closed at XB00. On departure, I contacted tower on 126.4, was cleared for takeoff. The controller made a comment about the NOTAM, and that was all. I would like to suggest that temporary control towers should monitor and inform on the local CTAF -- if tower had advised me on 122.8 to go to 126.6, there would have been no problem at all.

Original NASA ASRS Text

Title: A PA28-151 LANDS WITHOUT TWR CLRNC AT AJO, CA. TEMPORARY TWR IN OP.

Narrative: THERE WAS A TEMPORARY CTL TWR AT AJO BY NOTAM FOR A SPECIAL EVENT. I WAS VFR FROM L18 AND BEGAN POS RPTS ON CTAF (122.8) 7 MI S OF AJO. AN ACFT IN THE AREA AND ON FREQ ANNOUNCED THAT THE TEMPORARY TWR WAS CLOSED AT XA00. I CONTINUED POS RPTS IN THE STANDARD PATTERN FOR AJO RWY 25, L TFC. THERE WERE NO OTHER ACFT VISIBLE IN THE PATTERN OR ON FREQ. ON LNDG ROLLOUT, I SAW A SMALL PLATFORM N OF RWY 25 WITH 2 PERSONS, 1 WAVING AT ME AND 1 WITH BINOCULARS. I TAXIED TO FUEL, AND THE OPERATOR SAID HE THOUGHT THE TEMPORARY TWR CLOSED AT XB00. ON DEP, I CONTACTED TWR ON 126.4, WAS CLRED FOR TKOF. THE CTLR MADE A COMMENT ABOUT THE NOTAM, AND THAT WAS ALL. I WOULD LIKE TO SUGGEST THAT TEMPORARY CTL TWRS SHOULD MONITOR AND INFORM ON THE LCL CTAF -- IF TWR HAD ADVISED ME ON 122.8 TO GO TO 126.6, THERE WOULD HAVE BEEN NO PROB AT ALL.

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.