Mr. McNerney has kept a low public profile since a Jan. 7 battery fire on a parked Japan Airlines Co.
The NTSB, meanwhile, continued its investigation of a battery fire last week.
The National Transportation Safety Board is investigating the Boston battery fire and the process by which the FAA certified the 787's batteries were certified as safe.
The whole fleet has been grounded since mid-January after a battery fire on a Japan Airlines 787 in Logan Airport spooked U.S. regulators.
FORBES: Boeing Hits Fresh Highs As FAA Approves 787 Battery Fix Plans Amid Reports Of a $15B Order
At that time, LaHood and the head of the Federal Aviation Administration, Michael Huerta, declared the plane fit to fly despite a battery fire in one plane.
In the first incident, the battery fire occurred in a Japan Airlines 787 that had already landed at Boston's Logan International Airport and was empty of passengers.
After a battery fire and several other mishaps over the past few days, two separate flights reported a cracked cockpit window and an oil leak on Friday.
FORBES: FAA's 787 Dreamliner Probe A Formality To Protect U.S. Jobs And Reassure The Public: Citi
The National Transportation Safety Board is also investigating the battery fire in Boston and has sent a representative to Japan to assist authorities there with their investigation of the second.
The problems sparked a battery fire on a parked Japan Airlines 787 at Boston's Logan International Airport and another incident in which battery smoke forced an emergency landing of an All Nippon Airways (ANA) 787 in Japan.
BBC: Boeing's Dreamliner battery fix approved by US regulators
National Transportation Safety Board spokesman Peter Knudson said the agency made the request after recently becoming aware of battery problems at ANA that occurred before a Jan. 7 battery fire in a 787 parked at Boston's Logan International Airport.
As a result of an in-flight, Boeing 787 battery incident earlier today in Japan, the FAA will issue an emergency airworthiness directive (AD) to address a potential battery fire risk in the 787 and require operators to temporarily cease operations.
ENGADGET: FAA grounds all US Boeing 787 Dreamliners after second lithium ion battery failure
Not that Boeing is publicly jumping on any scapegoats to wholly blame for the worldwide grounding of its 787 Dreamliners after the Federal Aviation Agency ( FAA ) issued an emergency airworthiness direction (AD) in response to a battery fire that forced an All Nippon Airways plane to make an emergency landing in Japan on January 16.
FORBES: The Dreamliner: Boeing's Big Brand Hangs in the Balance
Earlier last month, a second battery caught fire in a Japan Airlines 787 parked in Boston.
The world's total fleet of 50 Boeing 787s has been grounded since Jan. 16 as Boeing and investigators tried to figure out why one aircraft battery caught fire and another smoldered, forcing an emergency landing.
Huerta also explained why the FAA allowed the aircraft to fly on January 11 after a battery caught fire on a plane in Boston -- but grounded it following a 787 emergency landing in Japan four days later prompted by a battery alarm and a report of a burning smell.
Investigators in Washington have taken X-rays and CT scans of the lithium-ion battery that caught fire in Boston, the safety board said.
CNN: Quick fix for Dreamliner looks less likely, experts say
On Tuesday, the U.S. National Transportation Safety Board said it was conducting a chemical analysis of internal short circuiting and thermal damage of the battery that caught fire in Boston.
The board's technical experts are in possession of the battery that caught fire and are effectively performing an autopsy on its charred insides in a search for clues to what caused the conflagration.
Last month, safety regulators grounded the entire fleet of Boeing 787 Dreamliners after a battery on a plane operated by Japan Airlines caught fire, while a battery malfunction forced an emergency landing of a flight operated by All Nippon Airways.
The battery unit sustained severe fire damage, the safety board said, adding that it had sent two additional investigators to Boston.
Moreover, GM took steps to better protect the Volt battery pack following a fire that flared after a crash test in 2011.
The Japanese findings come after the U.S. National Transportation Safety Board said over the weekend that the battery in the Boston fire had not been overcharged, eliminating a relatively simple potential cause but adding new complexity to the investigation.
The battery on one JAL plane caught fire, while an ANA flight had to make an emergency landing due to a battery fault.
Firstly, on 7 January, a battery overheated and started a fire on a Japan Airlines 787 at Boston's Logan International Airport.
BBC: Dreamliner: Boeing 'may never find battery fault cause'
The entire fleet of 787s was grounded last month after a battery on one plane caught fire, while a malfunction forced another to make an emergency landing.
Laboratory tests have shown that such events can prompt nearby cells to quickly heat up and result in a fierce, high-temperature fire engulfing the battery and anything nearby.
All this with no compromises to battery or weight - Kindle Fire HD combines the most power-efficient LTE chipset available with a custom-designed 4G wireless modem that's only 2.2 mm thin.
ENGADGET: Kindle Fire HD 8.9 ships today, 4G version to follow next week
Earlier this month, a battery in a JAL 787 plane caught fire, while an All Nippon Airways flight was forced to make an emergency landing because of a battery malfunction.
BBC: Dreamliner: Japan's airlines say they changed batteries
The A350 is intended as a rival to the Dreamliner, which was grounded last month after a lithium-ion battery on a Japan Airlines plane caught fire, while an All Nippon Airways flight was forced to make an emergency landing because of a battery malfunction.
In January, a fire started in a battery pack in a Japan Airlines 787 in Boston.
应用推荐