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Unauthorized landing after widebody transport experiences a lightning strike on approach.
| Attributes | |
| ACN | 284018 |
| Time | |
| Date | 199409 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | agl bound lower : 0 agl bound upper : 2800 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent : approach landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 110 flight time total : 17353 flight time type : 5252 |
| ASRS Report | 284018 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer observation : company check pilot |
| Qualification | pilot : cfi pilot : instrument pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 125 flight time total : 26000 flight time type : 5000 |
| ASRS Report | 283862 |
| Events | |
| Anomaly | aircraft equipment problem : less severe incursion : landing without clearance inflight encounter : weather non adherence : clearance |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Landed in ord on runway 14R without receiving landing clearance from tower. I believe the event occurred due to several factors. The crew was made up of myself, first officer who was a senior management captain and reserve so. The WX and traffic was heavy when we were cleared for approach. We were told to keep speed up till OM and switch to tower at marker. Just prior to marker at about 2800 ft, 8 DME on ILS, we had a lightning strike which caused a momentary loss of navigation instruments. This event I believe caused the first officer not to switch over to the tower and I forgot to verify that we had received a landing clearance. I landed and rolled out normally and realized we were still on approach control frequency. We switched to tower frequency and were asked if we received the green light -- we said we did! Supplemental information from acn 283862:I took aircraft and flew until he retuned his ILS, along with the strike, we had light/moderate turbulence and gusty winds. After touchdown I discovered that I had not contacted the tower and we had landed without a clearance. Upon contacting the tower. They thought we had a communication problem and asked if we had seen the green light. Of course, I replied that we had! When confronted by a complex (yet familiar) clrncs and startled or distraction even experienced pilots can make fundamental mistakes.
Original NASA ASRS Text
Title: UNAUTH LNDG AFTER WDB EXPERIENCES A LIGHTNING STRIKE ON APCH.
Narrative: LANDED IN ORD ON RWY 14R WITHOUT RECEIVING LNDG CLRNC FROM TWR. I BELIEVE THE EVENT OCCURRED DUE TO SEVERAL FACTORS. THE CREW WAS MADE UP OF MYSELF, FO WHO WAS A SENIOR MGMNT CAPT AND RESERVE SO. THE WX AND TFC WAS HVY WHEN WE WERE CLRED FOR APCH. WE WERE TOLD TO KEEP SPD UP TILL OM AND SWITCH TO TWR AT MARKER. JUST PRIOR TO MARKER AT ABOUT 2800 FT, 8 DME ON ILS, WE HAD A LIGHTNING STRIKE WHICH CAUSED A MOMENTARY LOSS OF NAV INSTS. THIS EVENT I BELIEVE CAUSED THE FO NOT TO SWITCH OVER TO THE TWR AND I FORGOT TO VERIFY THAT WE HAD RECEIVED A LNDG CLRNC. I LANDED AND ROLLED OUT NORMALLY AND REALIZED WE WERE STILL ON APCH CTL FREQ. WE SWITCHED TO TWR FREQ AND WERE ASKED IF WE RECEIVED THE GREEN LIGHT -- WE SAID WE DID! SUPPLEMENTAL INFO FROM ACN 283862:I TOOK ACFT AND FLEW UNTIL HE RETUNED HIS ILS, ALONG WITH THE STRIKE, WE HAD LIGHT/MODERATE TURB AND GUSTY WINDS. AFTER TOUCHDOWN I DISCOVERED THAT I HAD NOT CONTACTED THE TWR AND WE HAD LANDED WITHOUT A CLRNC. UPON CONTACTING THE TWR. THEY THOUGHT WE HAD A COM PROB AND ASKED IF WE HAD SEEN THE GREEN LIGHT. OF COURSE, I REPLIED THAT WE HAD! WHEN CONFRONTED BY A COMPLEX (YET FAMILIAR) CLRNCS AND STARTLED OR DISTR EVEN EXPERIENCED PLTS CAN MAKE FUNDAMENTAL MISTAKES.
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.