PA28 pilot had an oil leak that caused a restr to visibility. Resulted in landing without clearance.

Attributes
ACN	484550
Time
Date	200009
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : l15.airport
State Reference	NV
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : bfi.tower
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 15 flight time total : 350 flight time type : 100
ASRS Report	484550
Person 2
Affiliation	other
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical incursion : landing without clearance non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : landed in emergency condition
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

I was flying aircraft from northern california to henderson, nv (L15), and developed an oil leak en route which covered the windscreen making visibility difficult. The sun was setting and I was straining to see the runway. I reported in to the non federal control tower when I was about 4 mi out and told to report downwind. In the stress of the moment, I neglected to report downwind and made a normal landing. There was no other traffic in the area. The controller admonished me after landing.

Original NASA ASRS Text

Title: PA28 PLT HAD AN OIL LEAK THAT CAUSED A RESTR TO VISIBILITY. RESULTED IN LWOC.

Narrative: I WAS FLYING ACFT FROM NORTHERN CALIFORNIA TO HENDERSON, NV (L15), AND DEVELOPED AN OIL LEAK ENRTE WHICH COVERED THE WINDSCREEN MAKING VISIBILITY DIFFICULT. THE SUN WAS SETTING AND I WAS STRAINING TO SEE THE RWY. I RPTED IN TO THE NON FEDERAL CTL TWR WHEN I WAS ABOUT 4 MI OUT AND TOLD TO RPT DOWNWIND. IN THE STRESS OF THE MOMENT, I NEGLECTED TO RPT DOWNWIND AND MADE A NORMAL LNDG. THERE WAS NO OTHER TFC IN THE AREA. THE CTLR ADMONISHED ME AFTER LNDG.

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.