On training flight reporters discovered airspeed read 0 after lift-off. Continued around pattern for...

Attributes
ACN	141739
Time
Date	199004
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : eug
State Reference	OR
Altitude	agl bound lower : 0 agl bound upper : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : eug
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : takeoff landing other other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : private
Experience	flight time last 90 days : 15 flight time total : 100 flight time type : 9
ASRS Report	141739
Person 2
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 30 flight time total : 1500 flight time type : 35
ASRS Report	141855
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	aircraft : equipment problem dissipated flight crew : declared emergency
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Incident occurred on mon eve on first flight after washing and waxing aircraft on sat. After initial takeoff notice that airspeed indication was 0, was too high to continue and land straight ahead. Called tower and told them I needed, 'immediate landing.' tower asked for repeat. Told them needed, 'immediate landing, close in.' tower cleared the pattern and told me airport was mine and cleared to land any runway. After landing was asked if I needed assistance. Told them no. Was cleared to ground and then parking. Inspection disclosed no pitot or static ports blocked. Of note is that at landing airspeed came on--a subsequent test high speed taxi and low lift off and flight down the longest runway revealed all functioning normally. Because the aircraft had been washed and waxed, particular attention during preflight by 2 pilots was made of the pitot static system and all appeared proper and nothing was blocked. Our final conclusion was that there was probably water in the system that either drained or dried in the initial flight. I was left seat. My husband was in right seat. He was in process of checking me out in this aircraft. Upon loss of airspeed, he took over and landed as PIC.

Original NASA ASRS Text

Title: ON TRAINING FLT REPORTERS DISCOVERED AIRSPEED READ 0 AFTER LIFT-OFF. CONTINUED AROUND PATTERN FOR PRECAUTIONARY LNDG.

Narrative: INCIDENT OCCURRED ON MON EVE ON FIRST FLT AFTER WASHING AND WAXING ACFT ON SAT. AFTER INITIAL TKOF NOTICE THAT AIRSPD INDICATION WAS 0, WAS TOO HIGH TO CONTINUE AND LAND STRAIGHT AHEAD. CALLED TWR AND TOLD THEM I NEEDED, 'IMMEDIATE LNDG.' TWR ASKED FOR REPEAT. TOLD THEM NEEDED, 'IMMEDIATE LNDG, CLOSE IN.' TWR CLRED THE PATTERN AND TOLD ME ARPT WAS MINE AND CLRED TO LAND ANY RWY. AFTER LNDG WAS ASKED IF I NEEDED ASSISTANCE. TOLD THEM NO. WAS CLRED TO GND AND THEN PARKING. INSPECTION DISCLOSED NO PITOT OR STATIC PORTS BLOCKED. OF NOTE IS THAT AT LNDG AIRSPD CAME ON--A SUBSEQUENT TEST HIGH SPD TAXI AND LOW LIFT OFF AND FLT DOWN THE LONGEST RWY REVEALED ALL FUNCTIONING NORMALLY. BECAUSE THE ACFT HAD BEEN WASHED AND WAXED, PARTICULAR ATTN DURING PREFLT BY 2 PLTS WAS MADE OF THE PITOT STATIC SYS AND ALL APPEARED PROPER AND NOTHING WAS BLOCKED. OUR FINAL CONCLUSION WAS THAT THERE WAS PROBABLY WATER IN THE SYS THAT EITHER DRAINED OR DRIED IN THE INITIAL FLT. I WAS LEFT SEAT. MY HUSBAND WAS IN RIGHT SEAT. HE WAS IN PROCESS OF CHKING ME OUT IN THIS ACFT. UPON LOSS OF AIRSPD, HE TOOK OVER AND LANDED AS PIC.

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.

On training flight reporters discovered airspeed read 0 after lift-off. Continued around pattern for precautionary landing.