<< >> NASA ASRS Report 1667652, July 2019

B737 flight crew reported that during preflight inspection; leaking hydraulic fluid came in contact with air conditioning pack exhaust air; becoming mist which contaminated the eyes of the first officer; requiring medical attention.

Attributes
ACN	1667652
Time
Date	201907
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Hydraulic Fluid
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 216.63 Flight Crew Type 6653.95
Person 2
Function	First Officer
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

During preflight action external inspection; first officer was exposed to hydraulic fluid which was leaking in wheel well area. Fluid leak became mist when the air from packs came in contact with the leak. Prior to leaving the flight deck; the hydraulic systems were pressurized due to control movement from outside sources. After exposure to first officer's eyes; [chief pilot] was contacted which lead to medical attention per [chief pilot] checklist procedures.

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Original NASA ASRS Text

Title: B737 flight crew reported that during preflight inspection; leaking hydraulic fluid came in contact with Air Conditioning Pack exhaust air; becoming mist which contaminated the eyes of the First Officer; requiring medical attention.

Narrative: During preflight action external inspection; First Officer was exposed to hydraulic fluid which was leaking in wheel well area. Fluid leak became mist when the air from packs came in contact with the leak. Prior to leaving the flight deck; the hydraulic systems were pressurized due to control movement from outside sources. After exposure to First Officer's eyes; [Chief Pilot] was contacted which lead to medical attention per [Chief Pilot] checklist procedures.

Data retrieved from NASA's ASRS site 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.