* Hole found in fuselage by pilot on Monday
* The Boeing 737 had arrived from Philadelphia
CHICAGO, March 30 (Reuters) - The FBI is investigating what might be a bullet hole, discovered in the side of a US Airways Group Inc LCC.N plane this week, the airline said on Wednesday.
The small hole in the Boeing (BA.N) 737-400 was found by a pilot on Monday at the Charlotte/Douglas International Airport in North Carolina.
“The pilot was doing his standard, pre-flight walk-around and noticed a small hole in the rear, left fuselage,” said US Airways spokeswoman Michelle Mohr.
An FBI spokeswoman in Charlotte was not immediately available to comment on the investigation.
The aircraft had arrived in Charlotte from Philadelphia carrying 84 passengers and was scheduled to fly to Hartford, Connecticut, when the hole was found.
The plane, designed to carry 144 passengers and five crew members, was taken out of service on Monday and was scheduled to be back in service on Wednesday, Mohr said. (Reporting by Kyle Peterson, editing by Gerald E. McCormick)