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A crj-200 aircraft captain received a substantial electrical shock to his left hand and arm while selecting nosewheel steering to 'off.'
| Attributes | |
| ACN | 759737 |
| Time | |
| Date | 200710 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : bos.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 220 flight time total : 6800 flight time type : 4400 |
| ASRS Report | 759737 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
While captain was selecting the nosewheel steering switch to the off position; the captain received a substantial electrical shock to his left hand and arm. It is suspected the nosewheel switch caused the shock. Maintenance was notified along with a chief pilot. The captain was removed from the flight and reported to the medical offices in ZZZ. Captain checked out ok but had moderate to severe arm and hand pain for several hours after the event. That aircraft operated on a flight that same night. Previously in the day an electrical relay for the essential dc bus was replaced. This relay is on the captain's side of the flight deck. Maintenance had considerable difficulty getting to the relay because of the position of the relay and it is possible maintenance might have moved or damaged some wiring in this area. After 3 flights of movement it is possible a wire made the panel or switch electrically 'hot' causing the electrical shock.
Original NASA ASRS Text
Title: A CRJ-200 ACFT CAPTAIN RECEIVED A SUBSTANTIAL ELECTRICAL SHOCK TO HIS LEFT HAND AND ARM WHILE SELECTING NOSEWHEEL STEERING TO 'OFF.'
Narrative: WHILE CAPTAIN WAS SELECTING THE NOSEWHEEL STEERING SWITCH TO THE OFF POSITION; THE CAPTAIN RECEIVED A SUBSTANTIAL ELECTRICAL SHOCK TO HIS LEFT HAND AND ARM. IT IS SUSPECTED THE NOSEWHEEL SWITCH CAUSED THE SHOCK. MAINTENANCE WAS NOTIFIED ALONG WITH A CHIEF PILOT. THE CAPTAIN WAS REMOVED FROM THE FLIGHT AND REPORTED TO THE MEDICAL OFFICES IN ZZZ. CAPTAIN CHECKED OUT OK BUT HAD MODERATE TO SEVERE ARM AND HAND PAIN FOR SEVERAL HOURS AFTER THE EVENT. THAT AIRCRAFT OPERATED ON A FLIGHT THAT SAME NIGHT. PREVIOUSLY IN THE DAY AN ELECTRICAL RELAY FOR THE ESSENTIAL DC BUS WAS REPLACED. THIS RELAY IS ON THE CAPTAIN'S SIDE OF THE FLIGHT DECK. MAINTENANCE HAD CONSIDERABLE DIFFICULTY GETTING TO THE RELAY BECAUSE OF THE POSITION OF THE RELAY AND IT IS POSSIBLE MAINTENANCE MIGHT HAVE MOVED OR DAMAGED SOME WIRING IN THIS AREA. AFTER 3 FLIGHTS OF MOVEMENT IT IS POSSIBLE A WIRE MADE THE PANEL OR SWITCH ELECTRICALLY 'HOT' CAUSING THE ELECTRICAL SHOCK.
Data retrieved from NASA's ASRS site as of January 2009 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.